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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.

Definition 2024


vesicle

vesicle

English

Noun

vesicle (plural vesicles)

  1. (cytology) A membrane-bound compartment found in a cell.
  2. A small bladder-like cell or cavity.
  3. (anatomy) A small sac or cyst or vacuole, especially one containing fluid. A blister formed in or beneath the skin, containing serum. A bleb.
  4. (anatomy) A pocket of embryonic tissue that is the beginning of an organ.
  5. (geology) A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.
    • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 51:
      It frequently contains holes, or vesicles, especially nearer the surface of a flow where gas has escaped.

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