monogenean

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mon·o·ge·ne·an

M0393650 (mŏn′ə-jē′nē-ən)n. Any of various flatworms of the class Monogenea that typically pass the entire life cycle as an ectoparasite on an individual fish.
[From New Latin Monogenea, class name (originally an order name) : mono- + Greek geneā, race; see genealogy.]
mon′o·ge′ne·an adj.

monogenean

(ˌmɒnəˈdʒiːnɪən) na fluke or parasite that lives on a fish and is a member of the order Monogeneaadj (Zoology) relating to a monogenean