oestrus

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oestrus

/ˈiːstɹəs/
/ˈɛstɹəs/

Where it comes from

Borrowed from Latin oestrus (“gadfly, sting, frenzy”), from Ancient Greek οἶστρος (oîstros), from Proto-Indo-European *h₁eys-, used to form words denoting passion; see also Latin īra (“anger”), Lithuanian aistra (“violent passion”), Avestan 𐬀𐬈𐬯𐬨𐬀 (aesma, “anger”).

noun oestruses · oestri · œstrus · estrus

countable A biting fly of the genus Oestrus; a botfly. […] and which is produced by the larvae of oestri and particularly of Oestrus hemorrhoidalis.
countable A bite or sting.
archaic, countable A passion or frenzy.
countable, uncountable A female animal's readiness to mate. In those monoestrous species in which the male is capable all the year round, it is found that the oestri of individual females come at different seasons.

Translations

Every language

noun a female animal's readiness to mate

Español	estro, celo, brama, berrea, cachondez
한국어	발정 baljeong
日本語	発情 hatsujō
中文	發情 /发情 fāqíng
Português	estro, cio
Français	œstrus, chaleur
Deutsch	Brunst, Hitze
Italiano	estro, calore
Ελληνικά	οίστρος oístros
Русский	те́чка téčka, э́струс éstrus
עברית	יִחוּם yichúm

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MLA

"oestrus." Wiktionary, via Micwyn, micwyn.com/word/oestrus. Accessed 6 Nov. 2026.

APA

oestrus. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/oestrus

Chicago

"oestrus." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/oestrus.

BibTeX

@misc{oestrus_2026,
  title = {oestrus},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/oestrus},
  urldate = {2026-11-06}
}