n.
Any of numerous flatworms of the class Trematoda, including both external and internal parasites of animal hosts, that have a thick outer cuticle and one or more suckers or hooks for attaching to host tissue. Also called fluke.
adj.
Of or belonging to the Trematoda.
[From New Latin Trēmatōda, class name, from Greek trēmatōdēs, having holes, from trēma, trēmat-, perforation.]
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.