Search references for GENERATION GAP-PATTERN. Phrases containing GENERATION GAP-PATTERN
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Pattern
Generation gap is a software design pattern documented by John Vlissides that treats automatically generated code differently than code that was written
Generation_gap_(pattern)
Difference of opinions between generations
A generation gap or generational gap is a difference of opinions and outlooks between one generation and another. These differences may relate to beliefs
Generation_gap
Topics referred to by the same term
elders. Generation gap may also refer to: Generation gap (pattern), a pattern for modifying or extending generated software code Generation Gap (game show)
Generation gap (disambiguation)
Generation_gap_(disambiguation)
Behavioral design pattern in object-oriented programming
modifications. When used with code generation, this pattern is sometimes referred to as the generation gap pattern. This C++23 implementation is based
Template_method_pattern
All people from about the same time period
2008). "Generation What?". The New York Times Magazine. Archived from the original on 6 January 2018. Retrieved 20 February 2019. "The Generation Gap in American
Generation
Cohort born from 1965 to 1980
representing a generational change from the baby boomers. Many researchers and demographers use dates that correspond to the fertility-patterns in the population
Generation_X
Biological neural circuit that produces rhythmic outputs in the absence of rhythmic input
results in generation of a different motor pattern. Neuromodulatory projections expressing a common modulator can also elicit different patterns from the
Central_pattern_generator
Cohort born from 1997 to 2012
gender gap in political views among the young around the world. Polling on immigration in various countries receives mixed responses from Generation Z. Among
Generation_Z
Theory of generational cycles
the two authors discussed the generation gap between Baby Boomers and their parents and predicted there would be no such gap between Millennials and their
Strauss–Howe generational theory
Strauss–Howe_generational_theory
Interference pattern
opaque ruled pattern with transparent gaps is overlaid on another similar pattern. For the moiré interference pattern to appear, the two patterns must not
Moiré_pattern
Cohort born from 1981 to 1996
Millennials, also known as Generation Y or Gen Y, are the demographic cohort following Generation X and preceding Generation Z. Researchers and popular
Millennials
Renewable energy company
Pattern Energy Group LP is an American company that develops, owns and operates utility scale wind and solar power facilities in the United States, Canada
Pattern_Energy
Politics of those born from 1997 to 2012
redistributive policies tend to be popular with the generation. In recent years, a political gender gap between Gen Z men and women emerged, with Gen Z men
Political views of Generation Z
Political_views_of_Generation_Z
Cohort born from 1946 to 1964
the demographic cohort preceded by the Silent Generation and followed by Generation X. The generation is often defined as people born from 1946 to 1964
Baby_boomers
Generational status of immigrants and their descendants
instance, patterns of ethnic identification with the majority ethnic group and the heritage ethnic group differ between the 1.0, 2.0, and 2.5 generations, such
Immigrant_generations
Mountain pass in South India
escarpment slopes along the flanks of the Ghats. The Palakkad Gap affects the weather patterns in South India. During the southwest monsoon, the Western Ghats
Palakkad_Gap
Non-periodic tiling of the plane
Covering a flat surface ("the plane") with some pattern of geometric shapes ("tiles"), with no overlaps or gaps, is called a tiling. The most familiar tilings
Penrose_tiling
American generation born from 1997 to 2012
Post-90s Generation and Little Emperor Syndrome (China) Strawberry Generation (Taiwan) 9X Generation (Vietnam) List of generations Generation gap Cusper
Generation Z in the United States
Generation_Z_in_the_United_States
Process in microfabrication
optical lithography) is a process that involves using light to transfer a pattern onto a photoresist layer deposited on a sample, typically a silicon wafer
Photolithography
Motor vehicle model, 1991–1995
The fifth-generation Honda Civic is an automobile produced by Honda from 1991 until 1995. It debuted in Japan on September 9, 1991. At its introduction
Honda Civic (fifth generation)
Honda_Civic_(fifth_generation)
Novel photolithoghaphic techniques
Next-generation lithography (NGL) is a term used in integrated circuit manufacturing to describe the lithography technologies in development which are
Next-generation_lithography
Electric current produced in living cells
PMID 23897652. Mathews, Juanita; Levin, Michael (2017). "Gap junctional signaling in pattern regulation: Physiological network connectivity instructs
Developmental_bioelectricity
Cohort born during the early 1990s to late 1990s
Cusper Generation gap Generation Jones Generation Z in the United States Glossary of Generation Z slang Interbellum Generation Post-90s generation in China
Zillennials
Automatic creation of ontologies
Ontology learning (ontology extraction, ontology augmentation generation, ontology generation, or ontology acquisition) is the automatic or semi-automatic
Ontology_learning
Technique used to increase the number of structures a microchip may contain
line tip gap of less than 25 nm (k1=0.61) entails EUV single patterning is not sufficient; a second cut exposure is necessary. When patterns include feature
Multiple_patterning
Categorization of conflict between nations
secrecy, terror, and/or confusion to overcome the technological gap. Fourth-generation warfare has often involved an insurgent group or other non-state
Fourth-generation_warfare
Physics theory about the origin of mass
particles arise from interaction with a physical vacuum, similarly to the gap generation mechanism in superfluids. The low-energy limit of this theory suggests
Mass_generation
Cell-cell junction composed of innexins or connexins
sodium channels, and aquaporin. More gap junction proteins have become known due to the development of next-generation sequencing. Connexins were found to
Gap_junction
The first generation (generation I) of the Pokémon franchise features the original 151 fictional species of monsters introduced to the core video game
List_of_generation_I_Pokémon
Study of how patterns form by self-organization in nature
biology, pattern formation refers to the generation of complex organizations of cell fates in space and time. The role of genes in pattern formation
Pattern_formation
Creating sequence of numbers that cannot be predicted
have a definite pattern that fills in gaps evenly, qualitatively speaking; a truly random sequence may, and usually does, leave larger gaps. The following
Random_number_generation
of the countries with the largest income gap between urban and rural households. The urban-rural income gap increased as a proportion of total income
Economic_inequality_in_China
MOSFET technology node
to Q2 2018. Also, their later generation "7nm" (N7FF+) production was planned[needs update] to use EUV multiple patterning and have an estimated transition
7_nm_process
The third generation (generation III) of the Pokémon franchise features 386 fictional species of creatures and 135 Pokémon introduced to the core video
List of generation III Pokémon
List_of_generation_III_Pokémon
Average difference in remuneration amounts between men and women
The gender pay gap or gender wage gap is the average difference between the remuneration for men and women who are employed. In most countries, women are
Gender_pay_gap
Family and demographic pattern of Western Europe
The Western European marriage pattern is a family and demographic pattern that is marked by comparatively late marriage (in the middle twenties), especially
Western European marriage pattern
Western_European_marriage_pattern
Subdivision of space into cells
Mesh generation is the practice of creating a mesh, a subdivision of a continuous geometric space into discrete geometric and topological cells. Often
Mesh_generation
The fourth generation (generation IV) of the Pokémon franchise features 107 fictional species of creatures introduced to the core video game series in
List_of_generation_IV_Pokémon
Linear feature between two tectonic plates
boundary at any one time, but when it does occur, it fills in the opening gap as the two opposing plates move away from each other. Over millions of years
Divergent_boundary
Family of V8 and V6 engines
corresponds to the firing pattern of other modern V8 engines (for example the Ford Modular V8). The first of the Generation IIIs, the LS1 was the progenitor
General Motors LS-based small-block engine
General_Motors_LS-based_small-block_engine
Network of weather radars operated by the NWS
– To require the Secretary of Commerce to study the coverage gaps of the Next Generation Weather Radar of the National Weather Service and to develop
NEXRAD
Interaction between members of different generations
generation, or may refer specifically to conflict situations arising between teenagers and adults. Intergenerational cycle of violence is a pattern of
Intergenerationality
Car engine
Later generation GM engines, which began with the Generation III LS1 in 1997, have only the rod bearings, transmission-to-block bolt pattern and bore
Chevrolet small-block engine (1954–2003)
Chevrolet_small-block_engine_(1954–2003)
three years, and the US, two and a half. The pattern was also confirmed for the rest of the world, with the gap being largest in Africa. However, a study
Age disparity in sexual relationships
Age_disparity_in_sexual_relationships
Distribution of income or wealth between different groups
gap persists, more than 150 years after emancipation". The Washington Post. Retrieved July 5, 2024. Vallejo, Jody Agius (December 2010). "Generations
Economic_inequality
1993 studio album by Death
Individual Thought Patterns is the fifth studio album by American death metal band Death, released on June 22, 1993, by Relativity Records. It is the only
Individual_Thought_Patterns
American muscle car
the design. This generation of the Mach 1 was discontinued after the 2004 model year, with the introduction of the fifth generation Mustang. The Mach
Ford_Mustang_Mach_1
Brand of polymer-framed semi-automatic pistols
1 frame pattern and design was used by Glock from 1982 through 1988 and pre-dates the checkered grip patterns used in the second generation of Glock
Glock
American pony car
General Motors Firebird series of concept cars in the 1950s. The first generation Firebird had characteristic Coke bottle styling shared with its cousin
Pontiac_Firebird
Lithography using 13.5 nm UV light
does not entail improvements for all parts of a logic pattern, e.g., a dense trench with a gap on one side. In 2020, ASML reported that for the 3 nm node
Extreme ultraviolet lithography
Extreme_ultraviolet_lithography
Indian family, several of whom are notable in physics
known, [...]" Wali, p. ix Parameswaran, pp. 241-250 "U Minn–Voices from the Gaps: Uma Parameswaran" (PDF). University of Minnesota. 2009. Retrieved 4 November
Chandrasekhar_family
American generation born from 1981 to 1996
Millennials, also known as Generation Y or Gen Y, are the demographic cohort following Generation X and preceding Generation Z. Unlike their counterparts
Millennials in the United States
Millennials_in_the_United_States
non-Hispanic whites. Mexican second generation women experience an employment rate slightly below that of native whites. This gap in labor participation increases
Second-generation immigrants in the United States
Second-generation_immigrants_in_the_United_States
Lithographic technique that uses X-rays instead of light
exposure. While this does not affect the pattern pitch resolution, which is determined by wavelength and gap, the image exposure contrast (max-min)/(max+min)
X-ray_lithography
Men's association football team
knockout-stage upsets in terms of FIFA ranking difference, with a 31-place gap as Germany were ranked 10th, comparable to Russia's win over Spain in 2018
Germany national football team
Germany_national_football_team
Motor vehicle
a two-seater to a four-passenger car and the Chrysler 300C. To fill this gap, an experimental Cadillac design, the XP-715, was created, dubbed the "LaSalle"
Buick_Riviera
Algorithm that generates an approximation of a random number sequence
number generators are important in practice for their speed in number generation and their reproducibility. PRNGs are central in applications such as simulations
Pseudorandom_number_generator
Indian national identification number
"Stolen fingerprints, empty bank accounts: How customers are paying for gaps in Aadhaar". Scroll.in. Archived from the original on 26 November 2023. Retrieved
Aadhaar
candidate–generation phase takes this into account. The GSP algorithm discovers frequent sequences, allowing for time constraints such as maximum gap and minimum
GSP_algorithm
Motor vehicle
The first-generation Ford Mustang was manufactured by Ford from March 1964 until 1973. The introduction of the Mustang created a new class of automobiles
Ford Mustang (first generation)
Ford_Mustang_(first_generation)
Predominantly Scottish cloth pattern
(/plæd/), is a patterned cloth consisting of crossing horizontal and vertical bands in multiple colours, forming repeating symmetrical patterns known as setts
Tartan
Mid-size pickup truck manufactured by Ford Motor Company
above the compact Maverick upon its 2022 release. In late 2021 the second generation Ranger T6 was revealed for 2022 production, adopting a revised T6 platform
Ford_Ranger_(T6)
Motor vehicle
The fifth-generation Ford Mustang, is a two-door four-seater pony car manufactured and marketed by Ford from 2004 to 2014, for the 2005 to 2014 model years
Ford Mustang (fifth generation)
Ford_Mustang_(fifth_generation)
Free online crowdsourced encyclopedia
tolerance of abusive language was a reason put forth in 2013 for the gender gap in Wikipedia editorship. Edit-a-thons have been held to encourage female
Wikipedia
Motor vehicle
brands. The first two generations were forward control vehicles (with the engine placed between the seats); the third generation adopted a configuration
Chevrolet_van
water gap 1, indicating that the original river channel along the wind gap was abandoned at the same time as water starts to flow in water gap 1 and therefore
3D_fold_evolution
Breed of domestic cat
typical reddish-brown ticked tabby agouti pattern of a black Abyssinian and the oriental-built with colourpoint pattern of the Siamese. Daly bred a black ('ruddy')
Ocicat
Continent
hydropower and geothermal, and West and Central Africa face major electrification gaps despite hydroelectric potential. Water development and management are complex
Africa
Political party in the United States
building a new majority with the rise of a new generation of young and nonwhite voters. This overarching pattern requires an overarching explanation: Mr. Trump's
Democratic Party (United States)
Democratic_Party_(United_States)
Private school in Rabun Gap, Georgia, US
junior college to the Rabun Gap curriculum. Training teachers for the county was a main goal, and courses were patterned after those offered at the University
Rabun_Gap-Nacoochee_School
Human-caused changes to climate on Earth
December 2019. Emissions Gap Report 2019 (PDF). Nairobi: United Nations Environment Programme. 2019. ISBN 978-92-807-3766-0. Emissions Gap Report 2024. Nairobi:
Climate_change
Protein-coding gene in the species Homo sapiens
PMID 12771218. Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA
MCM8
American mid-sized car
more lavish than lesser Chevelle 300 and 300 Deluxe models thanks to patterned cloth and vinyl upholstery (all-vinyl in convertibles and station wagons)
Chevrolet_Malibu
American entrepreneur and venture capitalist (born 1967)
a "commonplace statistical observation about voting patterns that is often called the gender gap", and that women's right to vote was not under siege
Peter_Thiel
Temporal limit of a model's knowledge
hallucinations, where the model generates confident but false statements, information gaps, and reduced accuracy on evolving knowledge. Research has shown that knowledge
Knowledge_cutoff
paradron medic who has the same design as Autobot Arcee except having a pattern of different colours. She is dedicated to helping those who are hurt. Moonracer
List of The Transformers characters
List_of_The_Transformers_characters
inappropriate sexual behavior made by several current and former co-workers, a pattern that date back decades before joining KTTV in 1993 and reportedly continued
2017_in_American_television
Wide-body jet airliner developed from A330
per-seat than the previous A330-300 and that a new engine would not close the gap – but he acknowledged that it could be a threat as it put pressure on Boeing
Airbus_A330neo
Airborne wind energy system using a tethered rigid wing
that is flown autonomously in fast crosswind loops or figure-of-eight patterns to harvest wind energy at altitudes that are generally inaccessible to
Rigid kite (airborne wind energy)
Rigid_kite_(airborne_wind_energy)
Common weather phenomenon in San Francisco
marine layer and its clouds onshore and through any gaps in the Coast Ranges. The largest coastal gap is the Golden Gate at the entrance to San Francisco
San_Francisco_fog
Medical condition caused by receiving too little or too many nutrients
Studies in 2003 found that the gap between levels of undernutrition in men and women is generally small, but that the gap varies from region to region and
Malnutrition
implemented reform and opening-up policies in 1978, its income distribution pattern was characterized as egalitarian in all aspects." A study published in
Income_inequality_in_China
Children of Japanese immigrants
opportunities did nothing to mitigate the gaps which separated generational perspectives. The second generation of immigrants, born in Canada or the United
Nisei
High-performance version of the BMW 3 Series automobile
motorsport division, BMW M GmbH. M3 models have been produced for every generation of 3 Series since the E30 M3 was introduced in 1986. The initial model
BMW_M3
2004 single by Old Crow Medicine Show
half notes per minute. It uses the I–V–vi–IV pattern in the key of A major, with the main chord pattern of A–E–F♯m–D. In the music video, the guitar is
Wagon_Wheel_(song)
First generation of Japanese people who immigrated to the Americas
experiences and opportunities did nothing to mitigate the gaps which separated generational perspectives. In North America, since the redress victory
Issei
Compact car
South Korea, the first-generation model was initially sold under the "Elantra" nameplate, but starting from the second-generation, Korean models were sold
Hyundai_Elantra
Inequality of access to information and communication technologies
technology.: “Generational divides are nuanced; even among youth, socio-economic background significantly shapes skills and usage patterns. Across the globe
Digital_divide
Discussions and claims of differences in intelligence along racial lines
gradual closing of the gap as a fact. Flynn and Dickens summarize this trend, stating, "The constancy of the Black-White IQ gap is a myth and therefore
Race_and_intelligence
false memory (confabulation). In cognitive science, the generation of confabulatory patterns is symptomatic of some forms of brain trauma. In this, confabulations
Confabulation (neural networks)
Confabulation_(neural_networks)
Japanese diasporic term
experiences and opportunities has done little to mitigate the gaps which separated generational perspectives amongst their children and grandchildren. The
Yonsei_(Japanese_diaspora)
Telecommunications networks transmitted by radio waves
which use the same frequency. Consequently, there must be at least one cell gap between cells which reuse the same frequency in a standard frequency-division
Cellular_network
President of the United States from 2021 to 2025
2021. Retrieved April 23, 2021. "New momentum reduces emissions gap, but huge gap remains – analysis". Carbon Action Tracker (Press release). climateactiontracker
Joe_Biden
Series of V8 engines built by Chrysler
engines built by Chrysler with hemispherical combustion chambers. Three generations have been produced: the FirePower series (with displacements from 241
Chrysler_Hemi_engine
Comparison of organism developmental processes
Nüsslein-Volhard and Eric Wieschaus described gap genes which help to create the segmentation pattern in fruit fly embryos; they and Lewis won a Nobel
Evolutionary developmental biology
Evolutionary_developmental_biology
Unit of data on an Ethernet network
the length of the frame is determined by the location of the interpacket gap and valid frame check sequence (FCS). The IEEE 802.1Q tag or IEEE 802.1ad
Ethernet_frame
American stealth multirole fighter aircraft
F-22 led to the F-35 using a less galvanic corrosion-inducing skin gap filler, fewer gaps in the airframe skin needing filler, and better drainage. The flight
Lockheed Martin F-35 Lightning II
Lockheed_Martin_F-35_Lightning_II
Land service branch of the U.S. military
camouflage pattern known as Operational Camouflage Pattern (OCP); OCP replaced a pixel-based pattern known as Universal Camouflage Pattern (UCP) in 2019
United_States_Army
Mini SUV
wheels. The late second-generation model called SJ800 Coily had coil-sprung suspension, as well. All four Jimny generations have recirculating ball steering
Suzuki_Jimny
Process of analyzing large data sets
these methods with the intention of uncovering hidden patterns. in large data sets. It bridges the gap from applied statistics and artificial intelligence
Data_mining
GENERATION GAP-PATTERN
GENERATION GAP-PATTERN
Female
English
English name derived from the vocabulary word, GAY means "happy." Compare with masculine Gay.
Male
French
Masculine form of French Gaëlle, GAËL means "holy and generous."
Girl/Female
Biblical
Nativity, generation.
Female
Hebrew
(גַּל) Hebrew unisex name GAL means "mound, wave."
Female
English
Variant spelling of English Gay, GAE means "happy."
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi
Generation; Coming Generation of Father; Family
Surname or Lastname
English and French
English and French : nickname for a lighthearted or cheerful person, from Middle English, Old French gai. In Middle English the term could also mean ‘wanton’, ‘lascivious’ and this sense may lie behind the surname in some instances.English (of Norman origin) : habitational name from places in Normandy called Gaye, from an early proprietor bearing a Germanic personal name cognate with Wade.probably from the Catalan personal name Gai (Latin Gaius), or in some cases a nickname from Catalan gay ‘cheerful’.Variant of German Gau.North German : from a Frisian personal name Gay.A Congregational clergyman and one of the forerunners of the Unitarian movement in New England, Ebenezer Gay (1696–1787) was born in Dedham, MA, which had been founded by his grandfather, John Gay, who came to America from Wiltshire, England, about 1630 and settled in Watertown, MA. Ebenezer’s great-grandson Howard was editor of the American Anti-Slavery Standard.
Male
Native American
Native American Navajo name GAD means "juniper tree."
Girl/Female
Indian, Tamil
Generation
Girl/Female
Indian
Generation
Male
Hebrew
(גָּד) Hebrew name GAD means "troop." In the bible, this is the name of a prophet and the seventh son of Jacob by Zilpah. Compare with other forms of Gad.
Girl/Female
Biblical
Birth, generation.
Male
Greek
(Γάδ) Greek form of Hebrew Gad, GAD means "troop." In the bible, this is the name of a tribe descended from Gad, mentioned in the New Testament in Rev vii. 5. Compare with other forms of Gad.
Male
English
 Short form of English names beginning with Gay-, such as Gabriel "man of God" or "warrior of God," and Gaylord, GAY means "dandy." Compare with feminine Gay.
Boy/Male
Muslim
Old generation
Girl/Female
Biblical
Generation, habitation.
Female
French
Feminine form of French Gaëtan, GAËTANE means "from Caieta (Gaeta, Italy)."
Surname or Lastname
English
English : from Middle English gappe, Old Norse gap ‘chasm’, ‘breach’, hence a topographic name for someone who lived near a gap in a wall, hedge, or (in Norfolk and Suffolk) cliffs.German : from the personal name Gabo, a short form of Gebolf (see Gebhardt).
Boy/Male
Tamil
Young generation
Male
Slovene
Slovene form of Portuguese/Spanish Gaspar, GAÅ PER means "treasure bearer."Â
GENERATION GAP-PATTERN
GENERATION GAP-PATTERN
Girl/Female
Biblical
The place of weeping, or of mulberry-trees.
Girl/Female
Norse
Warlike.
Boy/Male
Hindu, Indian, Tamil
Son
Girl/Female
Hindu, Indian
Youth
Boy/Male
Tamil
Lord of victory, Brilliant
Boy/Male
Australian, Indian, Telugu
Priest
Girl/Female
Hindu, Indian, Traditional
Goddess Durga
Surname or Lastname
English
English : variant spelling of Allred.
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Marathi, Sindhi, Tamil, Telugu
Achiever
Girl/Female
Tamil
Peacock, Illusion
GENERATION GAP-PATTERN
GENERATION GAP-PATTERN
GENERATION GAP-PATTERN
GENERATION GAP-PATTERN
GENERATION GAP-PATTERN
v. i.
To pen or part widely; to exhibit a gap, fissure, or hiatus.
n.
The formation or production of any geometrical magnitude, as a line, a surface, a solid, by the motion, in accordance with a mathematical law, of a point or a magnitude; as, the generation of a line or curve by the motion of a point, of a surface by a line, a sphere by a semicircle, etc.
n.
Alternate generation. See under Generation.
a.
Pertaining to generation, or to the generative organs.
n.
The reproduction or renewal of tissues, cells, etc., which have been used up and destroyed by the ordinary processes of life; as, the continual regeneration of the epithelial cells of the body, or the regeneration of the contractile substance of muscle.
a.
Having the power of generating, propagating, originating, or producing.
v.
The gar pike. See Alligator gar (under Alligator), and Gar pike.
n.
Origination by some process, mathematical, chemical, or vital; production; formation; as, the generation of sounds, of gases, of curves, etc.
n.
The union of parts which have been severed, so that they become anatomically perfect; as, the regeneration of a nerve.
n.
An opening in anything made by breaking or parting; as, a gap in a fence; an opening for a passage or entrance; an opening which implies a breach or defect; a vacant space or time; a hiatus; a mountain pass.
v. t.
To deprive of cap.
n.
The act of generating or begetting; procreation, as of animals.
v. t.
To represent by a map; -- often with out; as, to survey and map, or map out, a county. Hence, figuratively: To represent or indicate systematically and clearly; to sketch; to plan; as, to map, or map out, a journey; to map out business.
n.
Acuteness; insight; sharp discoverment; sagacity; as, a person of singular penetration.
n.
That which closes or fills up an opening or gap; hence, a temporary expedient.
n.
An apparatus in which vapor or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort, or vessel for generating carbonic acid gas, etc.
v. t.
To cover with a cap, or as with a cap; to provide with a cap or cover; to cover the top or end of; to place a cap upon the proper part of; as, to cap a post; to cap a gun.
n.
Laughing gas.
v. t.
To feed with pap.
n.
That form of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate.