AskDefine | Define genital

Dictionary Definition

genital adj : of or relating to the external sex organs; "genital herpes"; "venereal disease" [syn: venereal]

User Contributed Dictionary

English

Adjective

  1. of, or relating to biological reproduction
  2. of, or relating to the genitalia
  3. of, or relating to psychosexual development during puberty

Translations

of, or relating to biological reproduction
of, or relating to the genitalia
of, or relating to psychosexual development during puberty

Noun

  1. (rare) the genitalia

Extensive Definition

A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; in mammals, these are:
The Latin term genitalia, sometimes anglicized as genitals and genital area, is used to describe the externally visible sex organs, known as primary genitalia or external genitalia: in males the penis, in females the clitoris and vulva.
The other, hidden sex organs are referred to as the secondary genitalia or internal genitalia. The most important of these are the gonads, a pair of sex organs, specifically the testes in the male or the ovaries in the female. Gonads are the true sex organs, generating reproductive gametes containing inheritable DNA. They also produce most of the primary hormones that affect sexual development, and regulate other sexual organs and sexually differentiated behaviors.
A more ambiguously defined term is erogenous zone, subjectively, any portion of the body that when stimulated produces erotic sensation, but always prominently including the genitalia.

Development

In typical prenatal development, sexual organs originate from a common anlage anatomy during early gestation and differentiate into male or female variations. The SRY gene, usually located on the Y chromosome and encoding the testis determining factor, determines the direction of this differentiation. The absence of it allows the gonads to continue to develop into ovaries.
Thereafter, the development of the internal reproductive organs and the external genitalia is determined by hormones produced by certain fetal gonads (ovaries or testes) and the cells' response to them. The initial appearance of the fetal genitalia (a few weeks after conception) looks basically feminine: a pair of "urogenital folds" with a small protuberance in the middle, and the urethra behind the protuberance. If the fetus has testes, and if the testes produce testosterone, and if the cells of the genitals respond to the testosterone, the outer urogenital folds swell and fuse in the midline to produce the scrotum; the protuberance grows larger and straighter to form the penis; the inner urogenital swellings grow, wrap around the penis, and fuse in the midline to form the penile urethra.
Each sexual organ in one sex has a homologous counterpart in the other one. See a list of homologues of the human reproductive system.
In a larger perspective, the whole process of sexual differentiation also includes development of secondary sexual characteristics such as patterns of pubic and facial hair and female breasts that emerge at puberty. Furthermore, differences in brain structure arises, affecting, but not absolutely determining, behavior.

See also

genital in Arabic: عضو جنسي
genital in Czech: Genitálie
genital in Welsh: System atgenhedlol
genital in Danish: Kønsorgan
genital in German: Geschlechtsorgan
genital in Modern Greek (1453-): Γεννητικά όργανα
genital in Persian: اندام جنسی
genital in French: Appareil reproducteur
genital in Croatian: Spolni organi
genital in Indonesian: Alat kelamin
genital in Italian: Apparato genitale
genital in Lithuanian: Lytiniai organai
genital in Dutch: Geslachtsorgaan
genital in Japanese: 生殖器
genital in Norwegian: Kjønnsorgan
genital in Norwegian Nynorsk: Kjønnsorgan
genital in Portuguese: Órgão sexual
genital in Russian: Репродуктивная система
genital in Simple English: Sex organ
genital in Slovak: Rozmnožovacia sústava
genital in Slovenian: Spolni organ
genital in Finnish: Sukupuolielin
genital in Swedish: Könsorgan
genital in Tagalog: Kasangkapang pangkasarian
genital in Thai: อวัยวะเพศ
genital in Turkish: Üreme sistemi
genital in Ukrainian: Статеві органи
genital in Chinese: 生殖器

Synonyms, Antonyms and Related Words

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