vacuole

vacuole
—vacuolar /vak'yooh oh"leuhr, vak"yooh euh-, vak"yeuh leuhr/, adj.
/vak"yooh ohl'/, n. Biol.
1. a membrane-bound cavity within a cell, often containing a watery liquid or secretion. See diag. under cell.
2. a minute cavity or vesicle in organic tissue.
[1850-55; < F; see VACUUM, -OLE1]

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Space within a cell that is empty of cytoplasm, lined with a membrane, and filled with fluid.

Especially in protozoans, vacuoles perform functions such as storage, ingestion, digestion, excretion, and expulsion of excess water. The large central vacuoles often found in plant cells enable them to attain a large size without accumulating the bulk that would make metabolism difficult.

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 in biology, a space within a cell that is empty of cytoplasm, lined with a membrane, and filled with fluid. Especially in protozoa, vacuoles are cytoplasmic organs (organelles), performing functions such as storage, ingestion, digestion, excretion, and expulsion of excess water. The large central vacuoles often found in plant cells enable them to attain a large size without accumulating the bulk that would make metabolism difficult.

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  • vacuole — [ vakɥɔl ] n. f. • 1734; du lat. vacuum ♦ Didact. Petite cavité, intervalle vide. Vacuoles de certaines scories, des lapilli. Histol. Espace circonscrit, parfois limité par une membrane, au sein du cytoplasme d une cellule ou d un organisme… …   Encyclopédie Universelle

  • Vacuole — Vac u*ole, n. [L. vacuus empty: cf. F. vacuole.] (Biol.) A small air cell, or globular space, in the interior of organic cells, either containing air, or a pellucid watery liquid, or some special chemical secretions of the cell protoplasm. [1913… …   The Collaborative International Dictionary of English

  • vacuole — 1853, from Fr. vacuole, from L. vacuus empty (see VACUUM (Cf. vacuum)) …   Etymology dictionary

  • vacuole — vacuole. См. вакуоль. (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.

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  • vacuole — ► NOUN Biology ▪ a space or vesicle inside a cell, enclosed by a membrane and typically containing fluid. ORIGIN from Latin vacuus empty …   English terms dictionary

  • vacuole — [vak′yo͞o ōl΄] n. [Fr < L vacuus, empty] Biol. a fluid filled cavity within the cytoplasm of a cell, surrounded by a membrane that usually encloses food, water, or air vacuolar [vak′yo͞o wə lər, vak΄yoo wō′lər] adj …   English World dictionary

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