a small sac or cyst.
Biology. a small bladderlike cavity, especially one filled with fluid.
Pathology. a circumscribed elevation of the epidermis containing serous fluid; blister.
Geology. a small, usually spherical cavity in a rock or mineral, formed by expansion of a gas or vapor before the enclosing body solidified.

1570–80; < Latin vēsīcula little bladder. See vesica, -ule Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To vesicle
World English Dictionary
vesicle (ˈvɛsɪkəl)
1.  pathol
 a.  any small sac or cavity, esp one containing serous fluid
 b.  a blister
2.  geology a rounded cavity within a rock formed during solidification by expansion of the gases present in the magma
3.  botany a small bladder-like cavity occurring in certain seaweeds and aquatic plants
4.  any small cavity or cell
[C16: from Latin vēsīcula, diminutive of vesica]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

1578, from M.Fr. vesicule, from L. vesicula, dim. of vesica "bladder, blister."
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

vesicle ves·i·cle (věs'ĭ-kəl)

  1. A small structure resembling a bladder.

  2. A small circumscribed elevation of the skin containing serum.

  3. A small sac or cyst containing liquid or gas.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
vesicle   (věs'ĭ-kəl)  Pronunciation Key 
  1. A small fluid-filled sac in the body.

  2. A membrane-bound sac in eukaryotic cells that stores or transports the products of metabolism in the cell and is sometimes the site for the breaking down of metabolic wastes. Vesicles bulge out and break off from the endoplasmic reticulum and the Golgi apparatus. Vesicles get their energy for mobility from ATP. Lysosomes and peroxisomes are vesicles.

  3. A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.

vesicular adjective (vě-sĭk'yə-lər, və-)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
The testes, prostate gland and seminal vesicle are unremarkable.
The possibility that vesicle computing raises is that computing may also be occurring on an entirely different level.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature