Word
estrus
/ˈestrəs/
noun
动情期
a state or period of heightened sexual arousal and activity in nonhuman mammals
也指动情周期，常见于医学术语
- 1.
applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
适用于非人类哺乳动物:性兴奋和活动增强的状态或时期
适用于非人类哺乳动物:性兴奋和活动增强的状态或时期；动情周期；[医] 动情期
In use
The female dog is in estrus and attracts male dogs.
Researchers noted that the onset of estrus in the herd occurred earlier this year.
Farmers track estrus cycles to optimize breeding times.
be in estrus
The mare is in estrus.
母马处于动情期。
enter estrus
The female enters estrus every 21 days.
雌性每21天进入动情期。
during estrus
During estrus, the female is receptive to males.
在动情期，雌性接受雄性。
estrus cycle
The estrus cycle lasts about a month.
动情周期大约持续一个月。
Common mistakes
The dog is having an estrus.The dog is in estrus.
Estrus 通常为不可数名词，表示状态而非事件，正确搭配是 'in estrus'，而非 'have an estrus'。
She is in estrus this week.She is ovulating this week.
Estrus 仅用于非人类哺乳动物，描述人类应使用 'ovulate' 或 'fertile period' 等词汇。
Connections
Learner notes
Grammar Note
通常不可数，指动物的发情期
Dictionary facts from ECDICT, WIKTIONARY.