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English
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Etymology
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From Middle Englishinfinite, from Old Frenchinfinité, from Latinīnfīnitās(“unlimitedness”), from negative prefix in-(“not”), + fīnis(“end”), + noun of state suffix -tās.
Pronunciation
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IPA(key): /ɪnˈfɪnɪti/, /ɪnˈfɪnɪɾi/
Audio (Southern England):
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Audio (US):
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Rhymes: -ɪnɪti
Noun
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infinity (countable and uncountable, plural infinities)
(uncountable) endlessness, unlimitedness, absence of a beginning, end or limits to size. concept of infinityThe desert stretched out toward the horizon as if into infinity.
(countable, mathematics) A number that has an infinite numerical value that cannot be counted. Synonym:∞(symbol)
2012 January, Michael Riordan, “Tackling Infinity”, in American Scientist[1], volume 100, number 1, archived from the original on 30 April 2013, page 86:Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
(countable, topology, mathematical analysis) An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.
(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.
(countable, uncountable) The symbol ∞.
Usage notes
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In mathematics there are several different infinities; see transfinite.
Synonyms
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(absence of a beginning, end or limits to size): See also Thesaurus:infinity
Antonyms
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finity
Derived terms
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axiom of infinity
directed infinity
infinity box
infinity-edge pool
infinityfold
infinity pool
infinity scarf
infinity shot
infinity sign
infinity symbol
infinity theory
infinity transmitter
null infinity
point at infinity
zero one infinity rule
Related terms
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finish
finite
infinite
infinitesimal
infinitieth
infinitude
Translations
[edit] endlessness, unlimitedness, absence of end or limit
a number that has an infinite, uncountable numerical value
Bulgarian: безкрайност (bg)f(bezkrajnost)
Catalan: infinitatf
Esperanto: infinito
Finnish: ääretön (fi)
French: infinité (fr)f
Greek: άπειρο (el)n(ápeiro)
Hungarian: végtelen (hu)
Irish: éigríochf
Japanese: 無限大 (ja)(むげんだい, mugendai)
Korean: 무한대(無限大) (ko)(muhandae)
Malay: ketidakterhinggaan, infiniti
Portuguese: infinito (pt)m
Romanian: infinit (ro)n
Russian: бесконе́чность (ru)f(beskonéčnostʹ)
Serbo-Croatian: bȅskonačnōst (sh)f
Spanish: infinito (es)m
Swedish: oändlighet (sv)c
Tagalog: awanggan
Turkish: sonsuz (tr)
a number which is very large compared to some characteristic number
Finnish: ääretön (fi)
French: infini (fr)m
Portuguese: infinito (pt)m
Romanian: infinit (ro)n, nesfârșit (ro)n (de mare)
Russian: бесконе́чность (ru)f(beskonéčnostʹ)
Serbo-Croatian: bȅskonačnōst (sh)f
Spanish: infinidad (es)f
Swedish: oändlighet (sv)c
Turkish: sonsuz (tr)
the symbol ∞
Bulgarian: безкрайност (bg)f(bezkrajnost)
Finnish: ääretön (fi)
French: infini (fr)m
German: Unendlichkeit (de)f
Malay: ketidakterhinggaan, infiniti
Polish: nieskończoność (pl)f(slang), symbol nieskończonościm, lemniskataf
Portuguese: infinito (pt)m
Romanian: infinit (ro)
Russian: бесконе́чность (ru)f(beskonéčnostʹ)
Serbo-Croatian: bȅskonačnōst (sh)f
Spanish: infinito (es)m
Swedish: oändlighetstecken (sv)n
Tagalog: awanggan
Tamil: முடிவிலி (ta)(muṭivili)
Turkish: sonsuz (tr)
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