pro-oestrumproestrumn.

Brit.

/prəʊˈiːstrəm/,

/prəʊˈɛstrəm/, U.S.

/proʊˈɛstrəm/

Forms: 1900s– proestrum (chiefly U.S.), 1900s– pro-oestrum.

Origin: Formed within English, by derivation. Etymons: pro- prefix², oestrus n.

Etymology: < pro- prefix² + oestrus n.

Biology. Now rare.

= pro-oestrus n.

ΘΚΠ

the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > mating > rut > phases of

diœstrus1900

pro-oestrum1900

1900 W. Heape in Q. Jrnl. Microsc. Sci. Nov. 6 Pro-œstrum or the Pro-œstrous Period..I have adopted to describe the first phases of generative activity in the female mammal at the beginning of a sexual season.

1943 Ecol. Monogr. 13 436/2 Clotted blood in the urine along the trail of the female may be evidence of the close of pro-oestrum.

1977 Amer. Midland Naturalist 98 110 Both females attained proestrum 5-7 days after the injection [of estrogen].

This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	pro-oestrum
释义	pro-oestrumproestrumn. Brit. /prəʊˈiːstrəm/, /prəʊˈɛstrəm/, U.S. /proʊˈɛstrəm/ Forms: 1900s– proestrum (chiefly U.S.), 1900s– pro-oestrum. Origin: Formed within English, by derivation. Etymons: pro- prefix², oestrus n. Etymology: < pro- prefix² + oestrus n. Biology. Now rare. = pro-oestrus n. ΘΚΠ the world > animals > animal body > general parts > sexual organs and reproduction > [noun] > mating > rut > phases of diœstrus1900 pro-oestrum1900 1900 W. Heape in Q. Jrnl. Microsc. Sci. Nov. 6 Pro-œstrum or the Pro-œstrous Period..I have adopted to describe the first phases of generative activity in the female mammal at the beginning of a sexual season. 1943 Ecol. Monogr. 13 436/2 Clotted blood in the urine along the trail of the female may be evidence of the close of pro-oestrum. 1977 Amer. Midland Naturalist 98 110 Both females attained proestrum 5-7 days after the injection [of estrogen]. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1900
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