hermaphroditism

hermaphroditism
/herr maf"reuh duy tiz'euhm/, n.
the condition of being a hermaphrodite.
Also, hermaphrodism /herr maf"reuh diz'euhm/.
[1800-10; HERMAPHRODITE + -ISM]

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Condition of having both male and female reproductive organs (see reproductive system).

It is normal in most flowering plants and in some invertebrate animals. True human hermaphrodites are extremely rare. Tissue of the ovary and testes may occur separately or be combined, external genitals may show traits of both sexes, and XY and XX sex chromosome pairs are present. If the condition is detected at birth, the child's sex can be chosen, usually on the basis of which sex organs dominate; those of the other sex are removed surgically. Individuals raised as members of one sex who develop characteristics of the other at puberty may be treated with surgery, and sex hormones may help them continue to live according to the sexual identity to which they are accustomed.

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      the condition of having both male and female reproductive organs. Hermaphroditic plants (reproductive system, plant) (most flowering plants) are called monoecious, or bisexual. Hermaphroditic animals, mostly invertebrates (invertebrate) such as worms, bryozoans (moss animals), trematodes (flukes), snails, slugs, and barnacles, are usually parasitic, slow-moving, or permanently attached to another animal or plant.

      In human beings, hermaphroditism is an extremely rare sex anomaly in which gonads for both sexes are present, in which external genitalia may show traits of both sexes, and in which the chromosomes show male-female mosaicism (where one individual possesses both the male XY and female XX chromosome pairs). Choice of sex must be made at birth, usually on the basis of the condition of the external genitalia (i.e., which sex organs predominate), after which surgery is performed to remove the gonads of the opposite sex. The remaining genitalia are then reconstructed to resemble those of the chosen sex.

      Individuals with the external appearance of one sex but the chromosomal constitution and reproductive organs of the opposite sex are examples of pseudohermaphroditism (q.v.).

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Universalium. 2010.

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Look at other dictionaries:

  • Hermaphroditism — Her*maph ro*dit*ism, n. (Biol.) The union of the two sexes in the same individual, or the combination of some of their characteristics or organs in one individual …   The Collaborative International Dictionary of English

  • hermaphroditism — hermaphroditism. См. гермафродитизм. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • hermaphroditism — The presence in one individual of both ovarian and testicular tissue; i.e., true h.. SYN: hermaphrodism. adrenal h. altered appearance of the genitalia due to disorders of adrenocortical function, most often female virilization; not an example of …   Medical dictionary

  • hermaphroditism — her maph·ro·dit·ism || hÉœr mæfrÉ™daɪtɪzm /hɜː m n. hermaphroditism, presence of both male and female sexual organs in a single organism or flower …   English contemporary dictionary

  • hermaphroditism — hermafroditizmas statusas T sritis ekologija ir aplinkotyra apibrėžtis Vyriškosios ir moteriškosios lyties požymių buvimas tame pačiame organizme. Kaip normalus reiškinys būdingas augalams, daugeliui bestuburių gyvūnų. Tokiame organizme gaminasi… …   Ekologijos terminų aiškinamasis žodynas

  • hermaphroditism — hermaphrodite ► NOUN 1) a person or animal having both male and female sex organs or other sexual characteristics. 2) Botany a plant having stamens and pistils in the same flower. DERIVATIVES hermaphroditic adjective hermaphroditism noun. ORIGIN… …   English terms dictionary

  • hermaphroditism — noun see hermaphrodite …   New Collegiate Dictionary

  • hermaphroditism — the variant of hermaphrodism …   Dictionary of ichthyology

  • hermaphroditism — n. [Gr. hermaphroditos, combining both sexes] Possession of gonads of both sexes by a single individual; autocopulation …   Dictionary of invertebrate zoology

  • hermaphroditism — noun Having sexual organs of both sexes. See Also: hermaphrodism, hermaphrodite, hermaphroditic, pseudohermaphroditism …   Wiktionary

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