anestrus

The period of sexual quiescence between the estrus cycles of mammals; may be: 1) a prolonged period in monestrous animals (dogs) or seasonally polyestrous animals (sheep), or 2) a prolonged period of failure of estrus in mature nonpregnant, polyestrous animals. [G. a- priv. + oistros, a gadfly, mad desire (estrus)]

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an·es·trus or chiefly Brit an·oes·trus -trəs n the period of sexual quiescence between two periods of sexual activity in cyclically breeding mammals compare ESTRUS

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an·es·trus (an-esґtrəs) 1. abnormal lack of ovarian activity in a female mammal; the term is sometimes extended to include any prolonged lack of sexual responsiveness. 2. a period of the estrous cycle during which there is no ovarian activity; in cats, horses, sheep, goats, and certain other species this occurs annually for periods of weeks to months. Called also diestrus.

Medical dictionary. 2011.

Look at other dictionaries:

  • anestrus — n. 1. 1 a state or interval of sexual inactivity between two periods of estrus; applies to nonhuman mammals. [Also spelled {anoestrus}.] [WordNet 1.5] …   The Collaborative International Dictionary of English

  • anestrus — [an es′trəs] n. [ AN 1 + ESTRUS] in the breeding cycle of many mammals, the period of sexual inactivity between two periods of estrus anestrous [an es′trəs] adj …   English World dictionary

  • Anestrus — ciklas be rujos statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Anestrus; Anoestrus ryšiai: platesnis terminas – patelės lytinis ciklas …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • anestrus — noun Etymology: New Latin Date: 1927 the period of sexual quiescence between two periods of sexual activity in cyclically breeding mammals …   New Collegiate Dictionary

  • anestrus — См. anoestrus …   Dictionary of invertebrate zoology

  • anestrus — /an es treuhs/, n. Zool. (of a female mammal) the interval of sexual inactivity between two periods of heat or rut. Also, anoestrus. [1925 30; AN 1 + ESTRUS] * * * …   Universalium

  • anestrus — noun in some female animals, a spell of sexual respite in between breeding periods …   Wiktionary

  • anestrus — an·es·trus …   English syllables

  • anestrus — an•es•trus [[t]ænˈɛs trəs[/t]] n. phl zool. the interval of sexual inactivity in a female mammal between two periods of heat or rut • Etymology: 1925–30 …   From formal English to slang

  • anestrus — noun applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus • Syn: ↑anestrum, ↑anoestrus, ↑anoestrum • Ant: ↑estrus • Derivationally related forms: ↑anestric ( …   Useful english dictionary

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