（雌性動(dòng)物的）動(dòng)情，動(dòng)情周期大多數哺乳動(dòng)物（包括人類(lèi)）的雌性產(chǎn)生的周期性的性沖動(dòng)，在此期間內雌性具有排卵的優(yōu)勢，所以該期間最適合性交；刺激
The periodic state of sexual excitement in the female of most mammals, excluding human beings, that immediately precedes ovulation and during which the female is most receptive to mating; heat.
大型雌性動(dòng)物其他的大型動(dòng)物（如鯨魚(yú)、大象或麋鹿等）的母獸
The mature female of other large animals, such as whales, elephants, or moose.
