noun . Biology a membrane-bound cavity within a cell, often containing a watery liquid or secretion. a minute cavity or vesicle in organic tissue. Origin of vacuole
dating back to
see origin at
-ole 1 Related forms vac·u·o·lar , [vak-yoo- oh-ler, vak-yoo- uh-, vak-y uh-ler] /ˌvæk yuˈoʊ lər, ˈvæk yu ə-, ˈvæk yə lər/ adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for vacuole germ
cellule Examples from the Web for vacuole Historical Examples of vacuole
There is always one nucleus and one
vacuole, but both may be more numerous.
We have received the impression that we have here to deal with a
vacuole filled with substance secreted by the cell.
The number of the
vacuole containing cells is 15-20% of the colourless blood corpuscles.
At each end of the cell is a
vacuole containing small granules that show an active dancing movement.
This is done by pulsation of the
vacuole, which ultimately bursts, passing fluid waste to the outside. British Dictionary definitions for vacuole noun biology a fluid-filled cavity in the cytoplasm of a cell Derived Forms vacuolar, adjective vacuolate ( ˈvækjʊəlɪt, -ˌleɪt), adjective vacuolation ( ˌvækjʊəˈleɪʃən), noun Word Origin for vacuole
C19: from French, literally: little vacuum, from Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for vacuole n.
1853, from French
vacuole, from Latin vacuus "empty" (see vacuum).
Online Etymology Dictionary, © 2010 Douglas Harper
n. A small cavity in the cytoplasm of a cell, bound by a single membrane and containing water, food, or metabolic waste. A small space or cavity in a tissue. Related forms vac′u•o ( ′lar -ō) ′lər, -lär′ adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A cavity within the cytoplasm of a cell, surrounded by a single membrane and containing fluid, food, or metabolic waste. Vacuoles are found in the cells of plants, protists, and some primitive animals. In mature plant cells, there is usually one large vacuole which occupies a large part of the cell's volume and is filled with a liquid called cell sap. The cell sap stores food reserves, pigments, defensive toxins, and waste products to be expelled or broken down. In the cells of protists, however, there may be many small specialized vacuoles, such as digestive vacuoles for the absorption of captured food and contractile vacuoles for the expulsion of excess water or wastes. See more at cell.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.