- Anything blown down or off by the wind, as fruit from a
tree, or the tree itself, or a portion of a forest prostrated by a
violent wind, etc. - An unexpected legacy, or other gain.
Meaning of 'windfall' (Princeton's WordNet)
1 . windfall
[ n]
Meaning (1): - a sudden happening that brings good fortune (as a sudden opportunity to make money)
Example in sentence:
the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line