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Generation of molecular oxygen through a biochemical or chemical reaction
Oxygen evolution is the chemical process of generating diatomic oxygen (O2) by a chemical reaction, usually from water, the most abundant oxide compound
Oxygen_evolution
Chemical element with atomic number 8 (O)
Oxygen is a chemical element; it has the symbol O and its atomic number is 8. It is a member of the chalcogen group in the periodic table. It is highly
Oxygen
Paleoproterozoic surge in atmospheric oxygen
or Great Oxygenation Event, also called the Oxygen Catastrophe, Oxygen Revolution, Oxygen Crisis, or Oxygen Holocaust, was a time interval during the Earth's
Great_Oxidation_Event
between oxygen and evolution remain elusive. Oxygen is both a result of biological activity and a key enabler. Photosynthesis produces oxygen while plants
Geological_history_of_oxygen
principal product of stellar evolution. It can be made by stars that were initially made exclusively of hydrogen. Most oxygen-16 is synthesized at the end
Isotopes_of_oxygen
A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may
Gas_evolution_reaction
Development of bacteria throughout time
Pernilla; Falkowski, Paul (2003). "Nitrogen fixation and photosynthetic oxygen evolution in cyanobacteria". Research in Microbiology. 154 (3): 157–164. doi:10
Evolution_of_bacteria
Biogeochemical cycle of oxygen
The oxygen cycle refers to the various movements of oxygen through the Earth's atmosphere (air), biosphere (flora and fauna), hydrosphere (water bodies
Oxygen_cycle
Ghanaian-British chemist
Yogesh; Nocera, Daniel G. (2013-03-06). "Mechanistic Studies of the Oxygen Evolution Reaction Mediated by a Nickel–Borate Thin Film Electrocatalyst". Journal
Kwabena_Bediako
Technique used for wastewater treatment
efficiency. When voltage is applied to the electrodes, intermediates of oxygen evolution are formed near the anode, notably hydroxyl radicals. Hydroxyl radicals
Electro-oxidation
High-energy-density electrical storage device
of zinc with oxygen in air. During discharge, a mass of zinc particles forms a porous anode, which is saturated with an electrolyte. Oxygen from the air
Zinc–air_battery
Splitting of water using a semipermeable membrane
non-ion-selective separator instead of an anion-exchange membrane. The Oxygen Evolution Reaction (OER) involves complex processes and a high energy barrier
Anion exchange membrane electrolysis
Anion_exchange_membrane_electrolysis
Chinese American scholar
transition‑metal cations controls the catalytic activity of oxides for oxygen reduction and oxygen evolution in a volcano-shaped dependence over several orders of magnitude
Yang_Shao-Horn
research is aimed at the oxidation half reaction also known as the Oxygen Evolution Reaction (OER). Current research focuses on understanding the mechanism
Heterogeneous_water_oxidation
Type of electrolyzer
their dissolution during the oxygen evolution is a drawback. Ni is considered as more stable during the oxygen evolution, but stainless steel has shown
Alkaline_water_electrolysis
Changes to stars over their lifespans
carbon and oxygen. The star follows the asymptotic giant branch on the Hertzsprung–Russell diagram, paralleling the original red-giant evolution, but with
Stellar_evolution
Catalyst surface active in redox reactions
"Electrocatalytic properties of La1-xCuxCoO3 (0 ≤ x ≤ 0.8) film electrodes for oxygen evolution in alkaline medium: Part II. A comparative study". Indian Journal of
Electrochemical_surface_area
First protein complex in light-dependent reactions of oxygenic photosynthesis
splitting (or oxygen evolution) is one of the most important reactions on the planet, since it is the source of nearly all the atmosphere's oxygen. Moreover
Photosystem_II
Electrochemical cell using a metallic anode and oxygen cathode
include the sluggish kinetics of the oxygen reduction reaction (ORR) during discharge and the oxygen evolution reaction (OER) during charge, which necessitate
Metal–air electrochemical cell
Metal–air_electrochemical_cell
Type of crystal structure
oxygen atoms is responsible for the efficiency of the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) in the material. In a metal-air
Ruddlesden-Popper_phase
Biological process to convert light into chemical energy
appeared later; the excess oxygen they produced contributed directly to the oxygenation of the Earth, which rendered the evolution of complex life possible
Photosynthesis
Topics referred to by the same term
a solution Molecular evolution, evolution at the scale of molecules Oxygen evolution, the process of generating molecular oxygen through chemical reaction
Chemical_evolution
Physical phenomenon
effect of the exciting light, led to the cognition that photosynthetic oxygen evolution is normally a major contributor to the photoacoustic signal in this
Photoacoustic_effect
Membrane enclosed compartments in chloroplasts and cyanobacteria
of photosynthesis. These include light-driven water oxidation and oxygen evolution, the pumping of protons across the thylakoid membranes coupled with
Thylakoid
Change in the heritable traits of populations
Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes
Evolution
glucose + oxygen) Photolytic oxygen evolution during photosynthesis occurs via the light-dependent oxidation of water to molecular oxygen and can be
Dioxygen in biological reactions
Dioxygen_in_biological_reactions
Metalloprotein that binds with oxygen
Hgb) is a protein containing iron that facilitates the transportation of oxygen in red blood cells. Almost all vertebrates contain hemoglobin, with the
Hemoglobin
Industrial processes using an electric field
processes have the advantage of avoiding the electrolysis of water and the oxygen evolution which accompanies electrolysis. This process is industrially used for
Electrophoretic_deposition
Organ that allows fish to breathe underwater
organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills on both sides of the pharynx (throat). Gills
Fish_gill
British-American chemist (born 1948)
of O–O bond formation within manganese di-μ-oxo dimers involved in oxygen evolution. Through his investigations, he has put forward a simplified proposal
Robert_H._Crabtree
Neoproterozoic surge in atmospheric oxygen
and 540 million years ago during the Neoproterozoic era, during which the oxygen concentration in Earth's atmosphere and oceans rose significantly. Taking
Neoproterozoic oxygenation event
Neoproterozoic_oxygenation_event
2001 science fiction comedy film by Ivan Reitman
Evolution is a 2001 American science fiction comedy film directed by Ivan Reitman and written by David Diamond and David Weissman, based on a story by
Evolution_(2001_film)
Type of chemical compound
"Energy-Related Small Molecule Activation Reactions: Oxygen Reduction and Hydrogen and Oxygen Evolution Reactions Catalyzed by Porphyrin- and Corrole-Based
Porphyrin
Physical law in electrochemistry
gas evolution due to the proton reduction at very low Eh: 2 H+ + 2 e− ⇌ H2 (cathode: reduction) Higher stability line with oxygen gas evolution due to
Nernst_equation
Sources of electricity or hydrogen via electrolysis
different needs. A good photocathode will have early onset of the oxygen evolution reaction (low overpotential), a large photocurrent at saturation, and
Photoelectrochemical_cell
Hydrogen that is produced biologically
extreme sensitivity to oxygen, being irreversibly inactivated by O2. When the cells are deprived from sulfur, oxygen evolution stops due to photo-damage
Biohydrogen
Chemical element with atomic number 74 (W)
2020). "High catalytic performance of tungsten disulphide rodes in oxygen evolution reactions in alkaline solutions". Applied Catalysis B: Environmental
Tungsten
Chemical compound
reactive oxygen species and the simplest peroxide, a compound having an oxygen–oxygen single bond. It decomposes slowly into water and elemental oxygen when
Hydrogen_peroxide
Technique in chemistry and manufacturing
45..535O. Fabbri, Emiliana; Schmidt, Thomas J. (5 October 2018). "Oxygen Evolution Reaction—The Enigma in Water Electrolysis". ACS Catalysis. 8 (10):
Electrolysis
was highly significant, as it allowed for photosynthetic oxygen evolution of plants. The oxygen-evolving complex (OEC) is a critical component of photosystem
Evolution of metal ions in biological systems
Evolution_of_metal_ions_in_biological_systems
Period of major evolutionary diversification of animal life
in the Phanerozoic; therefore, some see no forcing role of the oxygen level on evolution. The amount of ozone (O3) required to shield Earth from biologically
Cambrian_explosion
Rare calcium aluminium oxide mineral
[citation needed] Brownmillerite has been found to be a highly active oxygen evolution reaction catalyst in neutral pH. Ye'elimite, C4A3S̅, a rare natural
Brownmillerite
Chemical compound
Oxidation by Cobalt Catalyst ("Co−Pi")/α-Fe2O3 Composite Photoanodes: Oxygen Evolution and Resolution of a Kinetic Bottleneck". Journal of the American Chemical
Iron(III)_oxide
Israeli hydrogen fuel company
hydrogen and oxygen evolution reactions in time rather than space. Unlike conventional electrolysis methods that produce hydrogen and oxygen simultaneously
H2Pro
Body fluid in the circulatory system
other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells of the body, and transports metabolic waste products away from
Blood
Calcium titanium oxide mineral
(2013-09-17). "Double perovskites as a family of highly active catalysts for oxygen evolution in alkaline solution". Nature Communications. 4 (1): 2439. doi:10.1038/ncomms3439
Perovskite
Chemical element with atomic number 26 (Fe)
Antoine; Yin, Lan; Sadoway, Donald R. (2013). "A new anode material for oxygen evolution in molten oxide electrolysis". Nature. 497 (7449): 353–356. Bibcode:2013Natur
Iron
Scientific term for deep sea oxygen created by electrolysis
Dark oxygen production refers to the generation of molecular oxygen (O2) through processes that do not involve light-dependent oxygenic photosynthesis
Dark_oxygen
Device that converts the chemical energy from a fuel into electricity
batteries, primarily due to the inefficiency of the oxygen reduction reaction (and ... the oxygen evolution reaction, should the hydrogen be formed by electrolysis
Fuel_cell
Technology for splitting water molecules
as the Oxygen Evolution Reaction (OER). Here the liquid water reactant is supplied to catalyst where the supplied water is oxidized to oxygen, protons
Proton exchange membrane electrolysis
Proton_exchange_membrane_electrolysis
Earth history, 1.8 to 0.8 billion years ago
Billion, Earth experienced the Great Oxygenation Event due to the evolution of oxygenic photosynthetic cyanobacteria, and the resultant Huronian glaciation
Boring_Billion
Organism that consists of more than one cell
increase of oxygen levels during this time. This would have taken place after the Great Oxidation Event but before the most recent rise in oxygen. Mills concludes
Multicellular_organism
Proteins that transport oxygen throughout the bodies of some invertebrate animals
transport oxygen throughout the bodies of some invertebrate animals. These metalloproteins contain two copper atoms that reversibly bind a single oxygen molecule
Hemocyanin
Set of nuclear fusion reactions
El Eid, M. F., B. S. Meyer, and L.‐S. The. "Evolution of Massive Stars Up to the End of Central Oxygen Burning." ApJ The Astrophysical Journal 611.1
Oxygen-burning_process
Argentinian chemist
transfer processes. Lingenfelder showed that it was possible to boost the oxygen evolution reaction (OER) in electrocatalytic water-splitting by functionalising
Magalí_Lingenfelder
Geologic eon, 2500–539 million years ago
evolution of multicellular life towards the end of the era. The Proterozoic Eon was a very tectonically active period in the Earth's history. Oxygen changed
Proterozoic
the evolution of the most complex eukaryotic cells, from which all multicellular organisms are built. The boundary between oxygen-rich and oxygen-free
History_of_life
into oxygen and protons: 2 H2O → 4 H+ + 4 e− + O2 Many catalysts are effective, both homogeneous catalysts and heterogeneous catalysts. The oxygen evolving
Water_oxidation_catalysis
US company developing steel technology
Lan; Sadoway, Donald R. (May 2, 2013). "A new anode material for oxygen evolution in molten oxide electrolysis". Nature. 497 (7449): 353–356. Bibcode:2013Natur
Boston_Metal
Use of manganese by organisms
suggesting a path of evolution for this function in aerobic organisms. Manganese is also important in photosynthetic oxygen evolution in chloroplasts in
Manganese_in_biology
Records of Earth's development
reproduce. Fermentation can only occur in an anaerobic (oxygen-free) environment. The evolution of photosynthesis made it possible for cells to derive
History_of_Earth
in the oxygen evolution reaction. Her results show that it is the iron's ability to change its oxidation state that facilitates oxygen evolution. This
Maytal_Caspary_Toroker
Switch from fermentation to aerobic respiration
Marshall, L. C. (1965). Oxygen and evolution. New Scientist, 28, 415-9. Berkner, L. V.; Marshall, L. C. (1987), "Oxygen, evolution in atmosphere", Climatology
Pasteur_point
British plant biochemist
commenced work on plant biochemistry, focusing on photosynthesis and the oxygen evolution of chloroplasts, leading to the discovery of the 'Hill reaction'. From
Robin_Hill_(biochemist)
New Zealand academic
quasi-equilibrium assumption when evaluating the electrocatalytic oxygen evolution reaction mechanism by Tafel slope analysis". Electrochemistry Communications
Aaron_Marshall
Chemical compound
produce the salts; the manufacturing process is inefficient due to oxygen evolution and the product could contain contaminants coming from platinum corrosion
Sodium_persulfate
Production of metals by electrolysis
Yin, Lan; Sadoway, Donald R. (May 2013). "A new anode material for oxygen evolution in molten oxide electrolysis". Nature. 497 (7449): 353–356. Bibcode:2013Natur
Electrometallurgy
Jennifer (2016). "The role of biology in planetary evolution: cyanobacterial primary production in low-oxygen Proterozoic oceans". Environmental Microbiology
Evolution_of_photosynthesis
Nuclear fusion reaction
In astrophysics, the carbon–nitrogen–oxygen cycle (CNO cycle), sometimes called Bethe–Weizsäcker cycle after Hans Albrecht Bethe and Carl Friedrich von
CNO_cycle
Study of changes in ancient climate
influences the long-term evolution of the atmosphere by transferring carbon dioxide to and from large continental carbonate stores. Free oxygen did not exist in
Paleoclimatology
Hydrogen produced by renewable energy
water electrolysis (BAWE) reduces energy consumption by replacing the oxygen evolution reaction (OER) with the biochar oxidation reaction (BOR). An electrolyte
Green_hydrogen
Scientific study
The E. coli long-term evolution experiment (LTEE) is an ongoing study in experimental evolution begun by Richard Lenski at the University of California
E. coli long-term evolution experiment
E._coli_long-term_evolution_experiment
Extinct genus of insects
Alexander; VandenBrooks, John M. (2010-07-07). "Atmospheric oxygen level and the evolution of insect body size". Proceedings of the Royal Society B: Biological
Meganeura
Origin and diversification of primates through geologic time
recognizing changes in skin tone, allowing primates to better determine the blood oxygen saturation of others. The fourth theory postulates that primates' color
Evolution_of_primates
conclusion, the evolution of descended testes was promoted by the lower extra-abdominal temperature of the cauda epididymis which increased oxygen availability
Evolution of descended testes in mammals
Evolution_of_descended_testes_in_mammals
study the electrochemical deposition process and stability of Co-Pi oxygen evolution catalyst for solar storage. Schumacher, R.; Borges, G.; Kanazawa, K
Electrochemical quartz crystal microbalance
Electrochemical_quartz_crystal_microbalance
Scientist in the field of materials science, electrocatalysis
correlation between magnetic domains and spin-related enhancement of oxygen evolution reaction (OER). The spin-aligned O–O coupling between surface M–O•
Zhichuan_J._Xu
Class of chemical substance
for water splitting (hydrogen evolution reaction and oxygen evolution reaction), carbon dioxide reduction, and oxygen reduction reaction. Currently there
Metal–organic_framework
Chemical compound
methane, ammonium perchlorate decomposition, the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and water splitting. Perry, Dale L.
Vanadium(III)_oxide
sheets of Co-HAB MOF have been found to be catalytically active for oxygen evolution reaction (OER). Overpotential for this MOF was 310 mV at 10 mA cm−2
Conductive metal−organic frameworks
Conductive_metal−organic_frameworks
Type of rechargeable battery
between NiOOH and H2), CMC solution dipping (causing suppression of oxygen evolution), micro-encapsulation of Cu on MH alloy (causing decrease in H2 released
Nickel–metal_hydride_battery
Artificial process that uses sunlight energy to drive chemical synthesis
catalysts while oxygen evolved from the back side metal substrate which also eliminated the hazard of mixed hydrogen/oxygen gas evolution. A polymer membrane
Artificial_photosynthesis
Catholic research university in Belgium
them is a world record. In the solar hydrogen panel the hydrogen and oxygen evolution reactions are performed in the gas phase in cathode and anode compartments
KU_Leuven
Type of electrochemical cell
costs of V2O5 (> $30 / Kg); parasitic reactions including hydrogen and oxygen evolution; and precipitation of V2O5 during cycling. The hybrid flow battery
Flow_battery
The evolution of cetaceans is thought to have proceeded in modern day Pakistan during the Eocene epoch (56–34 mya), the second epoch of the Paleogene
Evolution_of_cetaceans
298.15 K, compared to -1.229 V for the electrolysis of water (with oxygen evolution as the anodic reaction). Cerium(IV) oxide–cerium(III) oxide cycle Copper–chlorine
Hybrid_sulfur_cycle
Chronological outline of major events in the development of plants
robustness of the evidence. Plant evolution is an aspect of the study of biological evolution, predominantly involving evolution of plants suited to live on
Timeline_of_plant_evolution
coupling of methane gives ethylene: 2CH 4 + O 2 → C 2H 4 + 2H 2O The oxygen evolution reaction entails, in effect, the oxidative coupling of water molecules
Oxidative_coupling
Extinct order of dragonfly-like animals
the contrary, both oxygen and carbon dioxide concentrations have changed dramatically during defining periods of metazoan evolution. Hyperoxia in the late
Meganisoptera
Chemical compound
effect in composite. It can be also used as electrocatalyst for the oxygen evolution reaction and as a material for fabricating electrodes for use in electrochemical
Cobalt_ferrite
Species of bacterium
"Anabaena", avoid oxygen toxicity is through specialized cells called heterocysts that lack photosystem II and hence do not have oxygen evolution. As a diazotrophic
Crocosphaera_watsonii
"Energy-Related Small Molecule Activation Reactions: Oxygen Reduction and Hydrogen and Oxygen Evolution Reactions Catalyzed by Porphyrin- and Corrole-Based
Transition metal porphyrin complexes
Transition_metal_porphyrin_complexes
Physiological structure of birds' bodies
of very high metabolic rates and oxygen supply, permit the bird to fly. The development of a beak has led to evolution of a specially adapted digestive
Bird_anatomy
Phylum of photosynthesising prokaryotes
endosymbiosis and the evolution of light and oxygen sensing in photosynthetic eukaryotes". Frontiers in Ecology and Evolution. 2 (66). Bibcode:2014FrEEv
Cyanobacteria
Allotrope of carbon
"Converting benzene into γ-graphyne and its enhanced electrochemical oxygen evolution performance". Journal of Materials Chemistry A. 7 (11): 5981–5990.
Graphyne
Romanian chemist
can be used in electrocatalytical reactions, including oxygen reduction and oxygen evolution. They also work on electrodes for energy storage in lithium
Magdalena_Titirici
Second era of the Phanerozoic Eon
atmospheric oxygen over phanerozoic time. Am. J. Sci. 289, 333–61. See the solid line in Fig. 1 of Atmospheric oxygen level and the evolution of insect
Mesozoic
Range of light usable for photosynthesis
chlorophyll-B, and carotenoids extracted in a solution. Bottom: PAR action spectrum (oxygen evolution per incident photon) of an isolated chloroplast.
Photosynthetically active radiation
Photosynthetically_active_radiation
Solar energy technology
This alloy drives the hydrogen evolution reaction while a cobalt-phosphate (CoPi) anode drives the oxygen evolution reaction. This new catalyst can run
Bionic_Leaf
American inorganic chemist, academic and researcher
functions of water in the experiment. Suib studied photo-catalytic oxygen evolution from non-potable water by using a bio-inspired molecular water oxidation
Steven_Suib
OXYGEN EVOLUTION
OXYGEN EVOLUTION
Surname or Lastname
English
English : probably a variant of Exley or Oxley.Americanized spelling of German Echsle or Öchsle, from a diminutive of Middle High German ohse ‘ox’, applied as a nickname for someone dealing with oxen (especially a plowman), or a habitational name for someone who lived at a house distinguished by the sign of an ox.
Surname or Lastname
English
English : occupational name for a driver of horses or oxen attached to a cart or plow, or of loose cattle, from a Middle English agent derivative of Old English drīfan ‘to drive’.
Surname or Lastname
English (Yorkshire)
English (Yorkshire) : occupational name for a person responsible for looking after oxen and castrated horses, from Middle English geld ‘sterile’, ‘barren (animal)’ (Old Norse geldr) + herde ‘herdsman’, Old English hierde (see Heard).Dutch : habitational name from the Dutch province of Gelderland or from Geldern in northwestern Germany (see Geller 1).
Boy/Male
Tamil
One who rules the body origen
Boy/Male
Hindu
The exact meaning of this name would be evolution also can mean progress
Boy/Male
Hindu
One who rules the body origen
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Tamil, Telugu
Creation; Evolution; Construction
Boy/Male
Tamil
Avirbhav | அவிரà¯à®ªà®¾à®µ
The exact meaning of this name would be evolution also can mean progress
Avirbhav | அவிரà¯à®ªà®¾à®µ
Girl/Female
Hindu, Indian
Oxygen; Breathe of Life
Surname or Lastname
English (Lancashire and Yorkshire)
English (Lancashire and Yorkshire) : occupational name for a keeper of oxen, from an agent derivative of Middle English nowt ‘beast’, ‘ox’ (from Old Norse naut, a cognate of Old English nÄ“at; compare Neat).English (Lancashire and Yorkshire) : occupational name for a scribe or clerk, from Middle English notere (Old English nÅtere, from Latin notarius, an agent derivative of nota ‘mark’, ‘sign’).
Boy/Male
Celebrity, Hindu, Indian
Creator of the Universe; Growth; Evolution; Similar to Brahma
Boy/Male
Gaelic, Hindu, Indian
Oxen; Bard
Boy/Male
Indian, Sanskrit
Evolution; Progress
Male
Greek
Short form of Greek Origenes, probably ORIGEN means "mountain-born."
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Mythological, Sanskrit, Telugu
Creator of the Universe; Growth; Evolution
Boy/Male
Arabic, Indian, Muslim, Tamil
Honourable Judge; One who Judges Fairly; Lord of Origen; Lord of Rain
Surname or Lastname
English and Jewish (Ashkenazic)
English and Jewish (Ashkenazic) : occupational name for someone in charge of oxen, from Middle English oxe ‘ox’ + man ‘man’, or German Ochs + Mann, or Yiddish oks + man.
Boy/Male
Hindu, Indian, Marathi, Sanskrit
Lord of Oxen; Bull
OXYGEN EVOLUTION
OXYGEN EVOLUTION
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
One with Lotus-like Eyes
Girl/Female
Indian, Marathi
Lucky
Boy/Male
German
Strong with a sword.
Boy/Male
American, Australian, Danish, French, Jamaican, Latin
Vain; Empty; Poor; Robbed; Hollow
Surname or Lastname
English (Durham)
English (Durham) : unexplained.
Surname or Lastname
English
English : habitational name from a place in Norfolk, so called from Old English finc ‘finch’ + hÄm ‘homestead’ or hamm ‘enclosure hemmed in by water’, ‘river meadow’.
Girl/Female
Christian & English(British/American/Australian)
Precious Gem
Girl/Female
British, Christian, English, French, Latin
Lovable; Diminutive of Amabel; Beloved
Girl/Female
Tamil
Boy/Male
Anglo Saxon
Competent.
OXYGEN EVOLUTION
OXYGEN EVOLUTION
OXYGEN EVOLUTION
OXYGEN EVOLUTION
OXYGEN EVOLUTION
n.
A plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterized by having c wood bark, and pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen.
n.
Chlorine used in bleaching.
v. t.
To deprive of oxygen; to deoxidize.
v. t.
To unite, or cause to combine, with oxygen; to treat with oxygen; to oxidize; as, oxygenated water (hydrogen dioxide).
a.
Oxygenic.
a.
Pertaining to, containing, or resembling, oxygen; producing oxygen.
v. t.
To convert into ozone, as oxygen.
n.
A ternary compound of oxygen and sulphur.
n.
A mixture of honey, water, vinegar, and spice, boiled to a sirup.
v. t.
To combine with oxygen, or subject to the action of oxygen, or of an oxidizing agent.
n.
The act or operation of depriving of oxygen.
v. t.
To combine with oxygen or with more oxygen; to add oxygen to; as, to oxidize nitrous acid so as to form nitric acid.
n.
A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96.
n.
A triangle having three acute angles.
n.
The technical name of oxygen.
a.
Without oxygen; characterized by the absence of oxygen; as, a nonoxygenous alkaloid.
a.
Combined with oxygen only in part.
a.
Capable of living without atmospheric oxygen; anaerobiotic.
a.
Forming alkalies with oxygen, as some metals.