Estrus (noun)

The period of sexual receptivity and fertility in female mammals, during which ovulation occurs and the animal will accept mating from males.

Origin:

From latin oestrus ("gadfly, frenzy, rage"), from ancient greek οἶστρος (oîstros, "gadfly, frenzy, rage").

Examples:

1. The estrus cycle is the period of sexual receptivity and fertility in female mammals, usually characterized by changes in hormone levels and behavior.
2. The estrus cycle in most mammals is cyclical, with estrus typically occurring every few weeks.
3. The estrus period lasts for a few days and is characterized by a swollen vulva and an increase in sexual behavior.
4. During estrus, a female mammal will typically attract males and may mate with one or more of them.
5. Estrus synchronization is a technique used in animal breeding to control the timing of ovulation and estrus in a group of females.