- water vacuole
- noun
Useful english dictionary. 2012.
water vacuole
Look at other dictionaries:
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 — [ 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 — 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… … Universalium
vacuole — 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 … Medical dictionary
water expulsion vesicle — contractile vacuole … Medical dictionary
Contractile vacuole — Protist Paramecium aurelia with contractile vacuoles A contractile vacuole (abbreviation: CV) is a sub cellular structure (organelle) involved in osmoregulation. It is found predominantly in protists and in unicellular algae. It was previously… … Wikipedia
contractile vacuole — n a vacuole in a unicellular organism that contracts regularly to discharge fluid from the body * * * an osmoregulatory organelle of protozoa and sponges that alternately fills with water extracted from the adjacent cytoplasm and then ejects the… … Medical dictionary
contractile vacuole — (vak u ōl) In protists and some animals, a clear fluid filled cell vacuole that takes up water from within the cell and then contracts, releasing it to the outside through a pore in a cyclical manner. Contractile vacuoles function primarily in… … Dictionary of microbiology
contractile vacuole — A specialized vacuole of eukaryotic cells, especially Protozoa, that fills with water from the cytoplasm and then discharges this externally by the opening of a permanent narrow neck or a transitory pore. Function is probably osmoregulatory … Dictionary of molecular biology
gas vacuole — A prokaryotic cellular organelle consisting of cylindrical vesicles around 75 x 300nm, often in clusters. The wall of the gas vacuole, which is permeable to gases but not to water, is formed from a monolayer of a single protein. Gas vacuoles are… … Dictionary of molecular biology
