oestrus

[es-truh s, ee-struh s] /ˈɛs trəs, ˈi strəs/
noun
1.
estrus.
Origin
1690-1700; < Latin < Greek oîstros gadfly, sting, madness
British Dictionary definitions for oestrus

oestrus

/ˈiːstrəs; ˈɛstrəs/
noun
1.
a regularly occurring period of sexual receptivity in most female mammals, except humans, during which ovulation occurs and copulation can take place; heat
Derived Forms
oestrous, oestral, (US) estrous, estral, adjective
Word Origin
C17: from Latin oestrus gadfly, hence frenzy, from Greek oistros
Word Origin and History for oestrus
n.

see estrus.

oestrus in Medicine

oestrus oes·trus (ěs'trəs)
n.
Variant of estrus.