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.
Meaning
1 senses(uncountable)A phase of the oestrus cycle, prior to sexual receptivity, during which one or more follicles of the ovary begin to grow.
Origin
From pro- + estrus.From pro- + estrus.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable