infinity
[ɪnˈfɪnɪɾi] noun
Forms infinities
- noun (uncountable) Endlessness, unlimitedness, absence of a beginning, end or limits to size. “concept of infinity”
- noun (countable, mathematics) A number that has an infinite numerical value that cannot be counted.
- noun (countable, topology, mathematical analysis) An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.
- noun (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.
- noun (countable, uncountable) The symbol ∞.
Synonyms
mul:∞ boundlessness endlessness infiniteness infinitude limitlessness unendingness unlimitedness ∞ eternity
Antonyms
Etymology
From Middle English infinite, from Old French infinité, from Latin īnfīnitās (“unlimitedness”), from negative prefix in- (“not”), + fīnis (“end”), + noun of state suffix -tās. By surface analysis, infinite + -ity.
Webster’s 1913
- noun Unlimited extent of time, space, or quantity; eternity; boundlessness; immensity. Sir T. More.
- noun Unlimited capacity, energy, excellence, or knowledge; as, the infinity of God and his perfections. Hooker.
Etymology [L. infinitas; pref. in- not + finis boundary, limit, end: cf. F. infinité. See Finite.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “infinity”, CC BY-SA 4.0. Details