Estrous cycles start after sexual maturity in females and are interrupted by anestrous phases, otherwise known as "rest" phases, or by pregnancies. Typically, estrous cycles repeat until death.

The estrous cycle is generally divided into the four stages of proestrus, estrus, metestrus, and diestrus. On cytological evaluation, these stages are defined by the absence, presence, or …

The meaning of ESTROUS is of, relating to, or characteristic of estrus.

One or more periods of estrus may occur during the breeding season of a species. Prior to ovulation the endometrium (uterine lining) thickens, in preparation for holding the fertilized ova. …

Estrous or menstrual cycles occur in mammals and refer to the phenomenon of cyclic ovarian function. This cyclic function is required to produce mature ova through a process called …

Estrous cycles start after puberty in sexually mature females and typically continue until death. The estrus phase is also referred to as being "in heat."

The estrous cycle is a complex process that is regulated by various hormones, including estrogen and progesterone, and involves the development of the ovarian follicles, the release of the …

ESTROUS definition: relating to or involving the period of maximum sexual receptivity of a female mammal. See examples of estrous used in a sentence.

estrous in American English (ˈestrəs) adjective pertaining to or involving the estrus

When a group of female mice is placed with a male their estrous cycles become synchronized. She said she was told by a vet that he would not spay her dog until the animal was older and …