noun
- The definition of infinity is endless or an indefinite large amount.
An example of infinity is time.
infinity
noun
pl. infinities- the quality of being infinite
- anything infinite; endless or unlimited space, time, distance, quantity, etc.
- an indefinitely large number or amount
- Geom. an ideal point or location thought of as being infinitely distant from the origin or base point of the space being considered
- Math. an ideal number thought of as the numerical value of an infinite quantity: symbol, ∞
- Photog.
- a distance so far from a camera that rays of light reflected from a subject there may be regarded as parallel
- a setting for such a distance on a focusing scale
Origin of infinity
Middle English infinite ; from Old French infinité ; from Classical Latin infinitasinfinity Idioms
to infinity
without limit or end
infinity
noun
pl. in·fin·i·ties- The quality or condition of being infinite.
- Unbounded space, time, or quantity.
- An indefinitely large number or amount.
- Mathematics The limit that a function ƒ is said to approach at x = a when ƒ(x) is larger than any preassigned number for all x sufficiently near a.
- a. A range in relation to an optical system, such as a camera lens, representing distances great enough that light rays reflected from objects within the range may be regarded as parallel.b. A distance setting, as on a camera, beyond which the entire field is in focus.
infinity
Noun
(countable and uncountable, plural infinities)
- (uncountable) Endlessness, unlimitedness, absence of end or limit.
- (countable, mathematics) A number that has an infinite numerical value that cannot be counted.
- (uncountable) A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further.
- (uncountable) The symbol ∞.
Usage notes
In mathematics there are several different infinities; see transfinite.
Antonyms