The Collaborative International Dictionary
Frock \Frock\ (fr[o^]k), n. [F. froc a monk's cowl, coat, garment, LL. frocus, froccus, flocus, floccus, fr. L. floccus a flock of wool; hence orig., a flocky cloth or garment; cf. L. flaccus flabby, E. flaccid.]
A loose outer garment; especially, a gown forming a part of European modern costume for women and children; also, a coarse shirtlike garment worn by some workmen over their other clothes; a smock frock; as, a marketman's frock.
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A coarse gown worn by monks or friars, and supposed to take the place of all, or nearly all, other garments. It has a hood which can be drawn over the head at pleasure, and is girded by a cord.
Frock coat, a body coat for men, usually double-breasted, the skirts not being in one piece with the body, but sewed on so as to be somewhat full.
Smock frock. See in the Vocabulary.
Smock frock \Smock" frock`\
A coarse frock, or shirt, worn over the other dress, as by
farm laborers.
--Macaulay.
Wiktionary
n. A coarse frock, or shirt, worn over other clothing, as by farm labourers.
Usage examples of "smock frock".
The dreadlocks do rather clash with the smock frock, Nigel thought fleetingly.
Sleary rapidly turned out from a box, a smock frock, a felt hat, and other essentials.