1. A woman's dress.
2. A long loose outer garment, as that worn by artists and craftspeople; a smock.
3. A woolen garment formerly worn by sailors; a jersey.
4. A robe worn by monks, friars, and other clerics; a habit.

1. To clothe in a frock.
2. To invest with clerical office.

[Middle English frok, a monk's habit, from Old French froc, from Medieval Latin froccus, of Germanic origin.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.