- 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.
Origin of vesicle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for vesicle
We find that no vesicle wants its coating of this earthy mineral.The Cruise of the Betsey
The proper capsule of the Graafian vesicle is composed of two layers.A System of Midwifery
There is no appearance of vesicle, nor is the skin discoloured.
Near each of their spiracles also is a vesicle which appears to be a reservoir.An Introduction to Entomology: Vol. IV (of 4)
This vesicle, of a milky-white colour, and filled with liquid, is the scolex.Animal Parasites and Messmates
P. J. Van Beneden
- any small sac or cavity, esp one containing serous fluid
- a blister
- geology a rounded cavity within a rock formed during solidification by expansion of the gases present in the magma
- botany a small bladder-like cavity occurring in certain seaweeds and aquatic plants
- any small cavity or cell
C16: from Latin vēsīcula, diminutive of vesica
Word Origin and History for vesicle
1570s, from Middle French vesicule, from Latin vesicula, diminutive of vesica "bladder, blister" (see ventral).
Online Etymology Dictionary, © 2010 Douglas Harper
- A small structure resembling a bladder.
- A small circumscribed elevation of the skin containing serum.
- A small sac or cyst containing liquid or gas.
- A small fluid-filled sac in the body.
- 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.
- A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.