from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various trematodes of the order Monogenea that typically pass the entire life cycle as ectoparasites on a single fish.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of many flatworms of the class Monogenea
From New Latin Monogenea, order name : mono- + Greek geneā, race; see genealogy.(American Heritage® Dictionary of the English Language, Fourth Edition)