Giardia

Giardia
A genus of parasitic flagellates that parasitize the small intestine of many mammals, including most domestic animals and humans; e.g., G. bovis in cattle, G. canis in dogs, and G. cati in cats. Many species have been described, but recent workers have suggested that these should be reduced to only two or three. [Alfred Giard, Fr. biologist, 1846–1908]
- G. intestinalis SYN: G. lamblia.
- G. lamblia a flattened, heart-shaped organism (10–20 μm in length) with 8 flagella; it attaches itself to the intestinal mucosa by means of a pair of sucking organs; it is usually asymptomatic except in heavy infections, when it may interfere with absorption of fats and produce flatulence, steatorrhea, and acute discomfort; it is the common species of G. in man, but is also found in pigs. SYN: G. intestinalis.

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giar·dia jē-'är-dē-ə, 'jär- n
1) cap a genus of flagellate protozoans inhabiting the intestines of various mammals and including one (G. lamblia syn. G. intestinalis) that is associated with diarrhea in humans
2) any flagellate of the genus Giardia
Giard zhē-är Alfred Mathieu (1846-1908)
French biologist. Giard was an all-around naturalist. He was a student of morphology, phylogeny, and ethology and a supporter of both Darwinism and Lamarckism. He investigated a wide range of topics in biology, including regeneration, sexuality, metamorphosis, experimental parthenogenesis, hybridization, autotomy, and mimicry. The genus Giardia was named in his honor in 1882 by Johann Kunstler.

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n.
a genus of parasitic pear-shaped protozoa inhabiting the human small intestine. They have four pairs of flagellate, two nuclei, and two sucking discs used for attachment to the intestinal wall. Giardia is usually harmless but may occasionally cause diarrhoea (see giardiasis).

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Gi·ar·dia (je-ahrґde-ə) [Alfred Giard, French biologist, 1846–1908] a genus of usually nonpathogenic, flagellate intestinal protozoa of the order Diplomonadida, phylum Parabasalia, parasitic in vertebrates. A large sucking disk on the organism's ventral body surface enables it to adhere to microvilli in the host's intestinal epithelium; there are two anterior nuclei and eight flagella in four pairs.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Giardia — Giardia …   Wikipédia en Français

  • giardia — GIÁRDIA s.f. (zool.) Lamblie (Giardia intestinalis). [pr.: giar di a] – Din lat. Giardia [intestinalis], numele ştiinţific al giardiei. Trimis de gall, 13.09.2007. Sursa: DEX 98  GIÁRDIA s. f. lamblie. (< fr. giardia) Trimis de raduborza,… …   Dicționar Român

  • giardia — género de protozoos flagelados que producen varias enfermedades en el hombre Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010. Giardia Género de protozoos flagelados. Existen muchas especies de Giardia que vive …   Diccionario médico

  • giardia — ● giardia nom féminin (de A. Giard, nom propre) Protozoaire flagellé, parasite des batraciens, des reptiles, des oiseaux et des mammifères. giardia [ʒjaʀdja] n. f. ÉTYM. D. i. (XXe); du nom du biologiste français A. Giard. ❖ ♦ Zool. Protozoaire… …   Encyclopédie Universelle

  • Giardia — Giardia. = Lamblia (см.). (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.

  • Giardia) — Giardia). См. лямблии. (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.

  • Giardia — Giardien Verschiedene Ansichten einer Giardia Cyste Systematik ohne Rang: Excavata ohne Rang: Fornicata …   Deutsch Wikipedia

  • Giardia — Giardia …   Wikipédia en Français

  • giardia — giàr·dia s.f. TS zool. protozoo del genere Giardia, parassita dell intestino dell uomo e di altri mammiferi | con iniz. maiusc., genere dell ordine dei Diplomonadini, cui appartiene la Giardia intestinalis, non rara nell intestino umano, che… …   Dizionario italiano

  • giardia — noun Etymology: New Latin, from Alfred M. Giard died 1908 French biologist Date: 1918 any of a genus (Giardia) of flagellate protozoans inhabiting the intestines of various mammals and including one (G. lamblia syn. G. intestinalis) that is… …   New Collegiate Dictionary

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