from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sign of cowardice.
- idiom show the white feather To act like a coward.
from the GNU version of the Collaborative International Dictionary of English
- adj. a mark or symbol of cowardice. See To show the white feather, under Feather, n.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a symbol of cowardice
From the belief that a gamecock with a white feather in its tail was a poor fighter.(American Heritage® Dictionary of the English Language, Fourth Edition)