from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a chamber that provides access to space where air is under pressure
Sorry, no etymologies found.