A garment worn over other clothing to protect it; a coverall or boiler suit. A garment, for manual labor or for casual wear, often made of a single piece of fabric, with long legs and a bib upper, supported from the shoulders with straps, and having several large pockets and loops for carrying tools.
User Defined Definitions
"usually with a bib and shoulder straps"
"a loose protective coverall or smock worn over ordinary clothing for dirty work"