1. A minute space in any tissue. 2. A clear space in the substance of a cell, sometimes degenerative in character, sometimes surrounding an englobed foreign body and serving as a temporary cell stomach for the digestion of the body. [Mod. L. vacuolum, dim. of L. vacuum, an empty space]
- contractile v. a cavity formed by the accumulation of fluid in the ectoplasm of a protozoan; after increasing for a time it empties itself externally by a sudden contraction; it functions as an osmoregulatory mechanism for water balance, especially in freshwater protozoans.
- digestive v. SYN: secondary lysosomes, under lysosome.
- parasitophorous v. a v. formed by layers of endoplasmic reticulum around an intracellular parasite which may serve to isolate the parasite and enclose it for lysozymal attack.

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vac·u·ole 'vak-yə-.wōl n
1) a small cavity or space in the tissues of an organism containing air or fluid
2) a cavity or vesicle in the cytoplasm of a cell containing fluid

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a space within the cytoplasm of a cell, formed by infolding of the cell membrane, that contains material taken in by the cell. White blood cells form vacuoles when they surround and digest bacteria and other foreign material.

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vac·u·ole (vakґu-ōl) [L. vacuus empty + -ole diminutive ending] any membrane-bound space or cavity within a cell. vacuolar adj

Medical dictionary. 2011.

Look at other dictionaries:

  • 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.

  • Vacuole — Vacuole, aus Golgi Vesikeln oder Erweiterungen des ER entstehender, mit Flüssigkeit, dem Zellsaft, gefüllter Hohlraum in Pflanzenzellen; dient der Regulation des Wasserhaushalts der Zelle, dem Abbau von Makromolekülen und der Stoffspeicherung.… …   Deutsch wörterbuch der biologie

  • 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

  • Vacuole — La vacuole est un organite présent dans la cellule végétale, les cellules fongiques[1]. De rares auteurs parlent de vacuoles dans les cellules animales mais le terme de vésicule est plus approprié[2]. Les vacuoles sont des compartiments délimités …   Wikipédia en Français

  • Vacuole — [ Organelles: (1) nucleolus (2) nucleus (3) ribosomes (little dots) (4) vesicle (5) rough endoplasmic reticulum (ER) (6) Golgi apparatus (7) Cytoskeleton (8) smooth ER (9) mitochondria (10) vacuole (11) cytoplasm (12) lysosome (13) centrioles… …   Wikipedia

  • vacuole — vakuolė statusas T sritis augalininkystė apibrėžtis Citoplazmos ertmė, pripildyta ląstelės sulčių. atitikmenys: angl. vacuole rus. вакуоль …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • vacuole — noun Etymology: French, literally, small vacuum, from Latin vacuum Date: 1853 1. a small cavity or space in the tissues of an organism containing air or fluid 2. a cavity or vesicle in the cytoplasm of a cell usually containing fluid see cell… …   New Collegiate Dictionary

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