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Pronunciation varies by accent · noun
(biology) The period of heat, or eagerness to mate, in animals..
Use oestruation when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Oestruation means (biology) The period of heat, or eagerness to mate, in animals..
Common synonyms include oestrus.
The opposite depends on the specific sense.
Use oestruation where its definition matches the intended context.
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