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vacuole - 6 dictionary results
vac⋅u⋅ole
[vak-yoo-ohl] 
yuˌoʊl
–noun Biology.
| 1. | a membrane-bound cavity within a cell, often containing a watery liquid or secretion. |
| 2. | a minute cavity or vesicle in organic tissue. |
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To vacuole
| vac·u·ole (vāk'yōō-ōl') n. A small cavity in the cytoplasm of a cell, bound by a single membrane and containing water, food, or metabolic waste. [French, from Latin vacuus, empty; see vacuum.] vac'u·o'lar (-ō'lər, -lär') adj., vac'u·o·la'tion n. |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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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. Contractile vacuole. (Zo["o]l.) See under Contractile, and see Illusts. of Infusoria, and Lobosa. Food vacuole. (Zo["o]l.) See under Food, and see Illust. of Infusoria.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Main Entry: vac·u·ole
Pronunciation: 'vak-y&-"wOl
Function: noun
1 : a small cavity or space in the tissues of an organismcontaining air or fluid
2 : a cavity or vesicle in the cytoplasm of a cell containing fluid
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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vacuole vac·u·ole (vāk'y&oomacr;-ōl')
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.
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.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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vacuole (vāk'y -ōl') Pronunciation Key
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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