duck(redirected from breaking duck)
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1. Any of various wild or domesticated waterbirds of the family Anatidae, characteristically having a broad flat bill, short legs, and webbed feet.
2. A female duck.
3. The flesh of a duck used as food.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.