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What is the meaning of FOCUS. Phrases containing FOCUS
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FOCUS
FOCUS
Look up focus or foci in Wiktionary, the free dictionary. Focus (pl.: foci or focuses) may refer to: Focus or Focus Festival, former name of the Adelaide
FOCUS is a fourth-generation programming language (4GL) computer programming language and development environment that is used to build database queries
Focus Plays Focus is the first studio album by Dutch rock band Focus, released in September 1970 on Imperial Records. It is the only album recorded by
The Ford Focus is a compact car (C-segment in Europe) manufactured by the Ford Motor Company from 1998 until 2025. It was created under Alexander Trotman's
Focus Features LLC is an American independent film production and distribution company, owned by Comcast as a unit of Universal Pictures, which is itself
Bernard Edwards Jr. (born November 6, 1972), known professionally as Focus..., is an American record producer from New York City. He gained major recognition
Focus is a Dutch progressive rock band formed in Amsterdam in 1969 by keyboardist, vocalist, and flautist Thijs van Leer, drummer Hans Cleuver, bassist
Look up focused in Wiktionary, the free dictionary. Focused may refer to: Focused (band), a Christian hardcore band Focused (album), a 1999 album by Billy
Focus on form (FonF), also called form-focused instruction, is an approach to language education in which learners are made aware of linguistic forms –
Football Focus was a BBC television magazine programme broadcast from 31 August 1974 until 1988, and from 1992 until 24 May 2026, live on BBC One on Saturday
FOCUS
FOCUS
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Acronyms & AI meanings
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FOCUS
FOCUS
The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis. See Focus, and Parameter.
An apparatus in which the images of external objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the outlines may be traced.
FOCUS
imp. & p. p.
of Focus
n.
The right line drawn through the two points of contact of the two tangents drawn from a given point to a given conic section. The given point is called the pole of the line. If the given point lies within the curve so that the two tangents become imaginary, there is still a real polar line which does not meet the curve, but which possesses other properties of the polar. Thus the focus and directrix are pole and polar. There are also poles and polar curves to curves of higher degree than the second, and poles and polar planes to surfaces of the second degree.
n.
Nearsightedness; shortsightedness; a condition of the eye in which the rays from distant object are brought to a focus before they reach the retina, and hence form an indistinct image; while the rays from very near objects are normally converged so as to produce a distinct image. It is corrected by the use of a concave lens.
n.
A central point; a point of concentration.
n.
A point in which the rays of light meet, after being reflected or refrcted, and at which the image is formed; as, the focus of a lens or mirror.
n.
A condition of the eye in which, through shortness of the eyeball or fault of the refractive media, the rays of light come to a focus behind the retina; farsightedness; -- called also hyperopia. Cf. Emmetropia.
n.
A convex lens of glass for producing heat by converging the sun's rays into a focus.
n.
A curve formed by a section of a cone, when the cutting plane makes a greater angle with the base than the side of the cone makes. It is a plane curve such that the difference of the distances from any point of it to two fixed points, called foci, is equal to a given distance. See Focus. If the cutting plane be produced so as to cut the opposite cone, another curve will be formed, which is also an hyperbola. Both curves are regarded as branches of the same hyperbola. See Illust. of Conic section, and Focus.
v. t.
To bring to a focus; to focalize; as, to focus a camera.
n..
A system of wires or lines in the focus of a telescope or other instrument; a reticle.
p. pr. & vb. n.
of Focus
n.
A kind of curve; one of the conic sections formed by the intersection of the surface of a cone with a plane parallel to one of its sides. It is a curve, any point of which is equally distant from a fixed point, called the focus, and a fixed straight line, called the directrix. See Focus.
n.
The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.
n.
A point so related to a conic section and certain straight line called the directrix that the ratio of the distace between any point of the curve and the focus to the distance of the same point from the directrix is constant.
pl.
of Focus
n.
The figure or picture of any object formed at the focus of a lens or mirror, by rays of light from the several points of the object symmetrically refracted or reflected to corresponding points in such focus; this may be received on a screen, a photographic plate, or the retina of the eye, and viewed directly by the eye, or with an eyeglass, as in the telescope and microscope; the likeness of an object formed by reflection; as, to see one's image in a mirror.
pl.
of Focus
n.
An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass.
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FOCUS