from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A fictional or hypothetical device by means of which one may travel into the future and the past.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hypothetical device used to travel into the past or the future.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a science fiction machine that is supposed to transport people or objects into the past or the future
Coined by H.G. Wells in his novel The Time Machine. (Wiktionary)