| estrus | That portion or phase of the sexual cycle of female animals characterised by willingness to permit coitus; readily detectable behavioural and other signs are exhibited by animals during this period. Synonym: heat. Origin: G. Oistros, mad desire (05 Mar 2000) |
|---|---|
| estrus cycle | A reproductive cycle in some female mammals (but not female humans, who instead have menstrual cycles). The cycle is characterised by a short period of intense sexual desire (called estrus or heat) when the animal is fertile, which often occurs only once or twice a year, and involves correlating physical changes of the reproductive tract. (09 Oct 1997) |
| estrus detection | Methods for recognition of the state of estrus. (12 Dec 1998) |
| estrus synchronization | Occurrence or induction of estrus in all of the females in a group at the same time, applies only to animals. (12 Dec 1998) |
| postpartum estrus | <veterinary> Estrus with ovulation and corpus luteum production which occurs in some animals (e.g., the fur seal) immediately following the birth of the young. (05 Mar 2000) |
|---|