'coverall' definitions:

Definition of 'coverall'

(from WordNet)
noun
A loose-fitting protective garment that is worn over other clothing

Definition of 'coverall'

From: GCIDE
  • coverall \coverall\ n. a loose-fitting one-piece garment that is worn over other clothing, especially one with trouser-like pants legs. [WordNet 1.5 +PJC]