vesicle

Pronunciation: ves′i-kăl

Definition:

1. A small bladder or bladderlike structure.
2. A small ( less than 1.0 cm in diameter), circumscribed elevation of the skin containing fluid.
3. A small sac containing liquid or gas.
4. A closed structure surrounded by a single membrane.
5. In fungi, the swollen apex of the conidiophore in Aspergillus and some Penicillium species, or the swollen apex of the sporangiophore in some zygomycetous species.

Synonym(s): vesiculaTA

[L. vesicula, a blister, dim. of vesica, bladder]

See Also: bleb, blister, bulla

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