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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.
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