'falloff' definitions:

Definition of 'falloff'

From: WordNet
noun
A noticeable deterioration in performance or quality; "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality" [syn: slump, slack, drop-off, falloff, falling off]

Definition of 'falloff'

From: GCIDE
  • falloff \falloff\ n. a noticeable decline in performance; as, a falloff in automobile sales.
  • Syn: slump, drop-off, falling off. [WordNet 1.5]