oestrus

IPA/ˈiːstrəs/
IPA/ˈestrəs/

oestrus — 名詞

1. the stage in a female animal's reproductive cycle when she can become pregnant a

1.名詞C2
釋義

發情期

雌性哺乳動物可受孕並願意交配的時期

the stage in a female animal's reproductive cycle when she can become pregnant and will mate with a male; the British spelling of estrus, used mostly when talking about cows, horses, dogs, and other non-human mammals.

例句

The dairy farmer watched closely for signs that his cows were coming into oestrus.

酪農密切觀察乳牛是否出現進入發情期的徵兆。

collocation: come into oestrus

Female cats in oestrus often cry loudly at night and rub against furniture.

處於發情期的母貓常在夜裡大聲嚎叫，並用身體磨蹭家具。

pattern: in oestrus (state description)

常見搭配
  • come into oestrus
  • in oestrus
  • enter oestrus
  • signs of oestrus
  • synchronise oestrus
同義詞
  • estrus

    the American spelling; same meaning

  • heat

    informal everyday term, especially for dogs and cats ('the dog is in heat')

  • rut

    used of male deer, sheep, and goats during the mating season, not the female cycle

反義詞
  • anoestrus

    the resting phase between oestrus periods, when the animal is not fertile

文法句型

in oestrus

come into oestrus

用法筆記

Uncountable; appears mostly in veterinary, zoology, and animal-husbandry contexts. Standard collocations are 'in oestrus' (during the period) and 'come into oestrus' / 'enter oestrus' (begin the period). Rarely used of humans — for the parallel human cycle, writers say 'ovulation' instead.

常見錯誤

The woman was in oestrus during her ovulation week.
The woman was ovulating during that week of her cycle.
oestrus describes non-human female mammals; for humans use 'ovulation' or 'fertile window'.
She had two oestruses last spring.
She came into oestrus twice last spring.
oestrus is uncountable; describe repetition with verbs or time phrases, not a plural noun.

同根字

  • oestrous
    形容詞C2
  • oestrogen
    名詞C1
  • anoestrus
    名詞C2

常見搭配

名詞搭配

  • oestrus cycle
  • oestrus period
  • oestrus detection
  • signs of oestrus

常用片語

  • come into oestrus
  • synchronise oestrus
  • induce oestrus

介系詞搭配

  • in oestrus
  • during oestrus