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单词	estrus
释义	estrus noun es·​trus ˈe-strəs  : a regularly recurrent state of sexual receptivity during which the female of most mammals will accept the male and is capable of conceiving : heat Some mares will exhibit estrus for 15 to 20 days. Frederick Harper also : a single occurrence of this state Example Sentences Recent Examples on the Web Plus, deer kept moving in faster than they could be sterilized, which Curtis attributes to new bucks being attracted to the ongoing estrus of the does that didn’t get pregnant. Brooke Jarvis, The New Yorker, 8 Nov. 2021 As a result, the Smithsonian Conservation Biology Institute, headquartered in Front Royal, Virginia, became a leader in giant panda estrus, breeding, pregnancy, pseudopregnancy and cub development. Roger Catlin, Smithsonian Magazine, 7 Dec. 2020 Unlike female lions, which tend to become receptive to mating—also known as coming into heat, or estrus—at the same time, leopards do not. Doug Main, National Geographic, 27 June 2018 The deer was sixty yards away, moving steadily, its head down, probably following the scent of doe in estrus. New York Times, 31 Mar. 2020 Based on traces of sperm found in the days before the birth of the first joey, the researchers found that the wallabies’ estrus, or mating period, began before the pregnancy was over. Veronique Greenwood, New York Times, 2 Mar. 2020 During the peak rut, a lot of estrus does mist the woods, and bucks had lots of choices. Michael Hanback, Outdoor Life, 4 Dec. 2019 The animals are in estrus for only 24 to 72 hours each year. Michael E. Ruane, Washington Post, 27 Aug. 2019 Britain, and Wales in particular, grows lamb at a relatively natural pace, with ewes coming into estrus just once a year, to be mated with rams in the fields, to give birth in the spring, after five months gestation. Washington Post, 17 Aug. 2019 See More Word History Etymology New Latin, from Latin oestrus gadfly, frenzy, from Greek oistros — more at ire First Known Use circa 1890, in the meaning defined above Medical Definition estrus noun es·​trus ˈes-trəs  variants or estrum -trəm  or chiefly British oestrus ˈē-strəs  or oestrum ˈē-strəm  1 a : a regularly recurrent state of sexual excitability during which the female of most mammals will accept the male and is capable of conceiving : heat b : a single occurrence of this state 2 : estrous cycle
随便看	lummies lummis lummox lummoxes lummy lump lump (it) lump (together) noninstallment noninstitutional noninstitutionalised noninstitutionalized noninstructional noninstrumental noninsurance noninsurances noninsured nonintegral nonintegrated nonintellectual nonintellectuals noninteracting noninteractive noninterchangeable nonintercourse

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。