Main entry: belittle, pick at, disparage
Definition: express a negative opinion of
Usage: She disparaged her student's efforts
Main entry: pick at, peck, peck at
Definition: eat like a bird
Usage: The anorexic girl just picks at her food
Main entry: pluck at, pick at, pull at
Definition: pluck or pull at with the fingers
Usage: She picked nervously at the buttons of her blouse