Dictionary

noun

Definitions

1. An act of falling back.

2. A backup plan or contingency strategy; an alternative which can be used if something goes wrong with the main plan; a recourse.

   Example: As a fallback, I suppose we can use typewriters if the word processing system fails.

3. A reduction in bitumen softening point, sometimes called refluxing or overheating in a relatively closed container.

4. Pulverised material that falls back to earth after a nuclear explosion; fallout.