Word · Frequency #47655
oestrus
/ˈiːstrəs/
noun
发情; 发情周期
the period of sexual receptivity in female mammals; heat
- 1.
A biting fly of the genus Oestrus; a botfly.
一种属于蝇属的咬人蝇；一种蝇蛆。
- 2.
A bite or sting.
叮咬或刺痛。
- 3.
A female animal's readiness to mate.
雌性动物的发情期。
狂蝇属；一种属于蝇属的咬人蝇；一种蝇蛆。；叮咬或刺痛。；雌性动物的发情期。；发情
In use
The female dog's oestrus typically lasts about three weeks.
Farmers monitor their cows for signs of oestrus to optimize breeding.
The oestrus cycle in sheep averages 17 days.
in oestrus
oestrus 在此为不可数名词。
The female is in oestrus for about 24 hours.
雌性发情期大约持续24小时。
during oestrus
During oestrus, the female releases pheromones.
发情期间，雌性释放信息素。
Oestrus [species]
此处 Oestrus 为属名，可数，首字母大写。
Oestrus ovis is a parasite of sheep.
Connections
Learner notes
Grammar Note
通常为不可数名词，表示发情期；表示狂蝇属时为可数
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.