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vesicle |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.04 sec. |
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vesicle 1. Pathol a. any small sac or cavity, esp one containing serous fluid b. a blister 2. Geology a rounded cavity within a rock formed during solidification by expansion of the gases present in the magma 3. Botany a small bladder-like cavity occurring in certain seaweeds and aquatic plants vesicle [′ves·ə·kəl] (biology) A small, thin-walled bladderlike cavity, usually filled with fluid. (geology) A cavity in lava formed by entrapment of a gas bubble during solidification. Also known as air sac; bladder; saccus; vacuole; wing. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Nevertheless all living things have much in common, in their chemical composition, their germinal vesicles, their cellular structure, and their laws of growth and reproduction. These clouds, or blushes as they may be called, are said to be produced by the alternate expansion and contraction of minute vesicles containing variously coloured fluids. |
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