Word · Frequency #47655
oestrus
/ˈiːstrəs/
noun
发情; 发情周期
核心释义
the period of sexual receptivity in female mammals; heat
- 1.
一种属于蝇属的咬人蝇；一种蝇蛆。
A biting fly of the genus Oestrus; a botfly.
- 2.
叮咬或刺痛。
A bite or sting.
- 3.
雌性动物的发情期。
A female animal's readiness to mate.
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
用法In use
The female dog's oestrus typically lasts about three weeks.
用法提示：名词作主语，表示发情期。
Farmers monitor their cows for signs of oestrus to optimize breeding.
用法提示：名词作介词宾语，表示发情状态。
The oestrus cycle in sheep averages 17 days.
用法提示：名词作定语，构成复合名词表示发情周期。
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.
相关词与表达Connections
学习提示Learner notes
语法说明Grammar Note
通常为不可数名词，表示发情期；表示狂蝇属时为可数
一起学习词形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.