English

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Noun

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estrus (countable and uncountable, plural estruses)

  1. (American spelling) Alternative spelling of oestrus
    • 1963, A. J. Sobrero, “Sperm Migration in the Female Genital Tract”, in Carl G. Hartman, editor, Mechanisms Concerned with Conception: Proceedings of a Symposium Prepared under the Auspices of the Population Council and the Planned Parenthood Federation of America, New York, N.Y.: The Macmillan Company, →LCCN, page 174:
      Bovine cervical mucus is more suitable for precise chemical and physical studies because much larger quantities can be obtained—as much as 150 ml may often be harvested from a single cow during estrus.

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Verb

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estrus

  1. conditional of estri