proestrus
A phase of the oestrus cycle, prior to sexual receptivity, during which one or more…A phase of the oestrus cycle, prior to sexual receptivity, during which one or more follicles of the ovary begin to grow.
Значение
значений: 1(неисчисляемое)A phase of the oestrus cycle, prior to sexual receptivity, during which one or more follicles of the ovary begin to grow.
Происхождение
From pro- + estrus.From pro- + estrus.
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Уроки к слову
уроков: 1- A1Исчисляемые и неисчисляемые существительные — Потому что оно может быть неисчисляемым