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Pronunciation varies by accent · noun
A phase of the oestrus cycle, prior to sexual receptivity, during which one or more follicles of the ovary begin to grow..
Use proestrus when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Proestrus means A phase of the oestrus cycle, prior to sexual receptivity, during which one or more follicles of the ovary begin to grow..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use proestrus where its definition matches the intended context.
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