from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Anatomy A fluid-containing sac or cavity in the body of an organism. Also called reservoir.
- n. Cytology One of the saclike vesicles that comprise the endoplasmic reticulum.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of the various membranes sections comprising some organelles like the Golgi apparatus and the endoplasmic reticulum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a sac or cavity containing fluid especially lymph or cerebrospinal fluid
Latin, cistern; see cistern.(American Heritage® Dictionary of the English Language, Fourth Edition)