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Webster 1913 Edition

oestruation

oesˊtru-a′tion

,

Noun.

(Physiol.)

The state of being under oestrual influence, or of having sexual desire.

Definition 2024

oestruation

oestruation

English

Alternative forms

estruation

Noun

oestruation ‎(usually uncountable, plural oestruations)

(biology) The period of heat, or eagerness to mate, in animals.

Synonyms

oestrus