2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Vesicle \Ves"i*cle\, n. [L. vesicula, dim. of vesica a bladder,
blister; akin to Skr. vasti bladder: cf F. v['e]sicule.]
A bladderlike vessel; a membranous cavity; a cyst; a cell.
Specifically:
a (Bot.) A small bladderlike body in the substance of
vegetable, or upon the surface of a leaf.
b (Med.) A small and more or less circular, elevation of
the cuticle, containing a clear watery fluid.
c (Anat.) A cavity or sac, especially one filled with
fluid; as the umbilical vesicle.
d (Zo["o]l.) A small convex hollow prominence on the
surface of a shell or a coral.
e (Geol.) A small cavity, nearly spherical in form and
usually of the size of a pea or smaller, such as are
common in some volcanic rocks. They are produced by the
liberation of watery vapor in the molten mass.
From WordNet r 1.6 [wn]:
vesicle
n : a small anatomically normal sac or bladderlike structure
(especially one containing fluid) [syn: {cyst}]
more about vesicle
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