Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a wingless, flattened, leathery dipterous fly (Melophagus ovinus) that is an external parasite on sheep
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A wingless louselike fly (Melophagus ovinus) that is parasitic to sheep, causing skin irritations that result in loss of wool. Also called sheep ked.