from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Something to which one can resort or retreat.
- n. A retreat.
- n. Computer Science A mechanism for carrying forth programmed instructions despite malfunction or failure of the primary device.
- n. Something that falls back: the fallback of a huge explosion.
- adj. Of, relating to, or constituting a resort or place of retreat: a fallback proposal; a fallback position behind our own lines.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An act of falling back.
- n. A backup plan or contingency strategy; an alternative which can be used if something goes wrong with the main plan; a recourse.
- n. A reduction in bitumen softening point, sometimes called refluxing or overheating in a relatively closed container.
- adj. That can be resorted to as a fallback.
from the GNU version of the Collaborative International Dictionary of English
- n. The act or process of falling back.
- n. Something or someone to which one resorts as an alternative to a failed resource or method.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. retreat
- v. fall backwards and down
- v. move back and away from
- v. have recourse to
- v. go back to bad behavior
- v. hang (back) or fall (behind) in movement, progress, development, etc.
- n. to break off a military action with an enemy
From the verb fall back. (Wiktionary)