Webster’s Revised Unabridged Dictionary · 1913
Digenea
Di·ge′ne·a (dī·jē′nē·ȧ), n. pl. [NL., fr. Gr. δι- = δίς- twice + γένος race, offspring.] (Zoöl.) A division of Trematoda in which alternate generations occur, the immediate young not resembling their parents.