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Definitions from WordNet

Definitions from the Web

Estrus

Estrus, also known as heat, refers to the recurring period of sexual receptivity and fertility in female mammals, typically marked by physical and behavioral changes. It is a natural biological cycle that allows for reproductive activities.

Senses and Usages:

Noun (Biology):

In biology, estrus is the name given to the specific phase of the female reproductive cycle during which she is sexually receptive and can conceive. It is characterized by elevated estrogen levels and is typically accompanied by visible signs such as swollen genitals or changes in behavior.

Sample Sentence:

- The female dog was in estrus and attracted the attention of all the male dogs in the neighborhood.

Noun (Zoology):

In zoology, estrus represents the periodic state of sexual excitability and fertility in female animals. It highlights the time when mating and reproduction are most likely to occur.

Sample Sentence:

- The lioness entered estrus, attracting the male lion who will compete for her and ensure the survival of their species.

Noun (Medicine):

In medicine, estrus refers to the phase of the menstrual cycle in non-human mammals. It signifies the period during which females are most fertile and capable of conceiving.

Sample Sentence:

- The veterinarian advised the farmer to bring the cows for mating during their estrus to increase the chances of successful impregnation.

Adjective:

Estrus, when used as an adjective, describes a particular characteristic or behavior associated with the estrus cycle in animals.

Sample Sentence:

- The male horse displayed estrus behavior, including heightened aggression and territoriality, attracting rival males.

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