umls-concept:C0014948 | skos:definition | MSH: The period in the ESTROUS CYCLE associated with maximum sexual receptivity and fertility in non-primate female mammals.,CSP: recurrent restricted period of sexual receptivity in female mammals other than humans and some nonhuman primates.,GO: The estrous cycle phase in which a female is sexually receptive. [GOC:dph, ISBN:0721662544] | lld:umls |