ascaris

ascaris
/as"keuh ris/, n., pl. ascarides /a skar"i deez'/.
any parasitic roundworm of the genus Ascaris, found in the human small intestine and causing colic and diarrhea.
Also, ascarid.
[ < NL (Linnaeus), the genus < Gk ascarís intestinal worm; cf. earlier, late ME ascarides (pl.) < ML < Gk]

* * *

      any of a genus of worms (order Ascaridida, class Secernentea) that are parasitic (parasitism) in the intestines of various terrestrial mammals, chiefly herbivores. They are typically large worms (up to about 40 cm long) characterized by a mouth surrounded by three lips. The species Ascaris lumbricoides is probably the most familiar parasite in humans. More than 25 percent of the world's human population is infected with these worms, and about 20,000 people die of Ascaris infestation yearly. An almost identical worm, often called A. suum, occurs in pigs. It is, however, not certain that this species is distinct from the one that infests humans. See ascariasis.

* * *


Universalium. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Ascaris — Adult female Scientific classification Kingdom: Animalia …   Wikipedia

  • Ascaris — Saltar a navegación, búsqueda ? Ascaris Hembra adulta de A. lumbricoides …   Wikipedia Español

  • Ascaris — Weibchen des Spulwurmes (Ascaris lumbricoides) Systematik Stamm: Fadenwürmer (Nematoda) Klasse: Secernentea …   Deutsch Wikipedia

  • Ascaris — n. 1. 1 the type genus of the family Ascaridae: roundworms with a three lipped mouth. Syn: genus {Ascaris}. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • áscaris — Género de gusanos nematodos, parásitos intestinales de animales domésticos pero que a veces están presentes en el hombre Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010. Ascaris Género de helmintos redondos y grandes que… …   Diccionario médico

  • Ascaris — Ascaris. См. аскариды. (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.

  • Ascaris — Ascaris, Mehrzahl Ascarides, Eingeweidewurm, s. Askariden …   Pierer's Universal-Lexikon

  • Ascaris — vgl. Askaris …   Das Wörterbuch medizinischer Fachausdrücke

  • ascaris — ascaride [ askarid ] ou ascaris [ askaris ] n. m. • 1372; lat. ascarida, gr. askaris ♦ Zool. Ver rond (nématodes), dont une espèce, l ascaride lombricoïde, parasite de l intestin de l homme et du cheval, peut atteindre dix à vingt cinq… …   Encyclopédie Universelle

  • Ascaris — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Ascaris est un mot : Ascaris, le nom vernaculaire du parasite Ascaris lumbricoides Ascaris, un genre de nématodes, dont un exemple d espèce est le… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”