单词 | vesicle |
释义 | ves·i·cle (vĕsĭ-kəl) n. A small enclosed structure or cavity, especially: a. Cytology A membrane-bound structure within a cell in which materials such as enzymes are transported or stored. b. Anatomy A sac or cyst, especially one containing fluid. c. Medicine A blister of the skin. d. Geology A cavity formed in volcanic rock by entrapment of a gas bubble during solidification. [Middle English, from Old French vesicule, from Latin vēsīcula, diminutive of vēsīca, bladder, blister.] |
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