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Webster 1913 Edition

Vesicle

Ves′i-cle

,
Noun.
[L.
vesicula
, dim. of
vesica
a bladder, blister; akin to Skr.
vasti
bladder: cf. F.
vésicule
.]
A bladderlike vessel; a membranous cavity; a cyst; a cell.
Specifically: –
(a)
(Bot.)
A small bladderlike body in the substance of a 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)
(Zool.)
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.

Webster 1828 Edition

Vesicle

VES'ICLE

,
Noun.
[. vesicula. See Vesicate.]
1.
A little bladder, or a portion of the cuticle separated from the skin and filled with some humor.
2.
Any small membranous cavity in animals or vegetables. The lungs consist of vesicles admitting air.

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