See Also: oestrous(dictionary)

oestrous (iou)



oestrous adjective. Also *estrous. E20.
[from OESTRUS + -OUS.]
Zoology & Physiology. Pertaining to or involving (an) oestrus; menstrual; (of a female animal) on or in heat.
oestrous cycle the cyclic series of physiological changes preceding, including, and following oestrus that takes place in most female mammals and involves esp. the reproductive and endocrine systems.
oestrual adjective [irreg., app. after menstrual] pertaining to or affected by (an) oestrus; menstrual; oestrous: M19.
oestru'ation noun the state of being in oestrus M19.