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vesicle |
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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. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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