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Estrus
Estrus Phenomenon of being sexually receptive, or in heat, as manifested at the ovulatory phase of the sexual cycle of the female, especially in subprimate species. The phenomenon of being sexually receptive, or in heat, as found in the sexual cycle of some species. A condition or syndrome of persistent estrus can be produced in some animals (for example, the rat) by hormonal injection of the newborn, notably with androgen. RELATED TERMS-------------------------------------- Sexual Pertaining to sex or, more particularly, the stimulation, responsiveness, and functions of the sex organs either alone or with one or more partners. Female The traditional definition of female was "an individual of the sex that bears young" or "that produces ova or eggs". However, things are not so simple today. Female can be defined by physical appearance, by chromosome constitution (see Female chromosome complement), or by gender identification. Female chromosome complement: The large majority of females have a 46, XX chromosome complement (46 chromosomes including two X chromosomes). A minority of females have other chromosome constitutions such as 45,X (45 chromosomes including only one X chromosome) and 47,XXX (47 chromosomes including three X chromosomes). Condition The term "condition" has a number of biomedical meanings including the following: 1.An unhealthy state, such as in "this is a progressive condition." 2.A state of fitness, such as "getting into condition." 3.Something that is essential to the occurrence of something else; essentially a "precondition." 4.As a verb: to cause a change in something so that a response that was previously associated with a certain stimulus becomes associated with another stimulus; to condition a person, as in behavioral conditioning. Syndrome A grouping of signs and symptoms, based on their frequent co-occurrence, that may suggest a common underlying pathogenesis, course, familial pattern, or treatment selection. Estrus Phenomenon of being sexually receptive, or in heat, as manifested at the ovulatory phase of the sexual cycle of the female, especially in subprimate species. The phenomenon of being sexually receptive, or in heat, as found in the sexual cycle of some species. A condition or syndrome of persistent estrus can be produced in some animals (for example, the rat) by hormonal injection of the newborn, notably with androgen. Injection Medication which is put into the body via a syringe and a needle. Androgen Any substance that produces male characteristics. Testosterone and androsterone are natural androgens. SIMILAR TERMS-------------------------------------- Estrace Estrace is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol. Estracomb A medicine used in the treatment of vasomotor symptoms associated with menopause, based in oestradiol and norethisterone. Produced by Novartis. Estraderm A medicine used in the treatment of vasomotor symptoms associated with menopause. Estradiol The most biologically potent of the naturally occurring estrogens. It is produced chiefly by the ovary and in small amount by the testis. Commercially, it is prepared in various compounds, such as estradiol benzoate and ethinyl estradiol. Estradiol and norgestimate Estradiol and norgestimate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol; norgestimate. Estradiol cypionate Estradiol cypionate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol cypionate. Estradiol valerate Estradiol valerate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol valerate. Estradot A medicine used in the treatment of vasomotor symptoms associated with menopause. Estradurin Estradurin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): polyestradiol phosphate. Estragest Medication used in the treatment of vasomotor symptoms associated with menopause. Based in oestradiol, norethisterone acetate. Produced by Novartis. Estraguard Estraguard is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): dienestrol. Estrapak Medication used in the treatment of vasomotor symptoms associated with menopause. Estrasorb Estrasorb is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol hemihydrate. Estratab Estratab is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estrogens, esterified. Estring Estring is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol. Estrogel Estrogel is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estradiol. Estrogen A hormone produced in the ovaries that works with progesterone to, among other things, regulate the reproductive cycle. Estrogen replacement therapy (ERT) Use of the female hormone estrogen to replace that which the body no longer produces naturally after medical or surgical menopause. Estrogen-associated blood clots Blood clots are occasional but serious side effects of estrogen therapy. They are dose-related, that is, they occur more frequently with higher doses of estrogen. Estrogen-associated hypercoagulability Hypercoagulability (a supranormal tendency for blood to clot) occurs as an occasional but serious side effect of estrogen therapy. Estrogen/progestin therapy Abbreviated EPT. A combination of the hormones estrogen and progestin. Taken by women, the estrogen in the EPT relieves such symptoms of menopause as hot flashes, night sweats, sleeplessness, and vaginal dryness. When taken alone, however, estrogen also increases the risk for cancer of the uterine lining, or endometrium. Combining estrogen with progestin virtually eliminates the risk of endometrial cancer. EPT is a form of hormone replacement therapy (HRT). Estrogenic substance Estrogenic substance is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estrone. Estrogens A group of three steroid hormones that convey female characteristics and control fertilization. The production of estrogen is stimulated by follicle-stimulating hormone (FSH), which uses cyclic AMP as its second messenger. Estrone Estrone is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estrone. Estropipate Estropipate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): estropipate. Estrostep 21 Estrostep 21 is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): ethinyl estradiol; norethindrone acetate. Estrostep fe Estrostep fe is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): ethinyl estradiol; norethindrone acetate. Estrovis Estrovis is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): quinestrol. PREVIOUS AND NEXT TERMS-------------------------------------- Erotography Graphic or written material of an erotic nature, not stigmatized as pornography. Erotomania Morbid exaggeration of, or preoccupation with sexuoerotic imagery and activity. Erotophonophilia A paraphilia of the sacrificial/expiatory type in which sexuoerotic arousal and facilitation or attainment of orgasm are responsive to, and contingent on stage-managing and carrying out the murder of an unsuspecting sexual partner. The erotophonophile's orgasm coincides with the expiration of the partner. The reciprocal paraphilic condition is autassassinophilia. Erotosexual The erotic and the sexual experienced as a unity, with more emphasis on erotic imagery and ideation than sexual behavior. It is possible to be erotic without being sexual in the sense of copulation, fertility, or reproduction. Conversely, it is possible, as in donor insemination, to be sexual without being erotic. see erotic/sexual. the erotic and the sexual experienced as a unity, with more emphasis on erotic imagery than sexual behavior. Estradiol The most biologically potent of the naturally occurring estrogens. It is produced chiefly by the ovary and in small amount by the testis. Commercially, it is prepared in various compounds, such as estradiol benzoate and ethinyl estradiol. Estrus Ethnography The branch of anthropology that studies the artifacts, customs, and life-styles of ethnic groups and tribes with different cultural histories. Etiology The theory of the factors in the genesis, origin, or cause of a disorder or disease. Eugenics The science that deals with breeding to improve the heredity of a species or racial stock. Eunuchoid Having the developmental sexual characteristics and appearance resembling those of a person who, like a castrate, has failed to mature pubertally. Eve principle In fetal life the differentiation of a female always occurs in the absence of fetal testicular secretions (MIS and testosterone), regardless of chromosomal sex. If in the differentiation of a female testosterone is added, differentiation thenceforth proceeds as male. We thank you for using the Medical Glossary to search for Estrus. If you have a better definition for Estrus than the one presented here, please let us know by making use of the suggest a term option. This definition of Estrus may be disputed by other professionals. Our attempt is to provide easy definitions on Estrus and any other medical topic for the public at large.
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