==etymology==
*from ancient Greek ''τρημᾰτώδης'' (trēmatṓdēs, “having a vent to the intestinal canal”), from ''τρῆμᾰ'' (trêma, “perforation, aperture”)
*"fluke" or "distoma" as general terms*trematodeはdistoma(suckerの意)と呼ばれることもある*fluke means "flat end", "flatfish"*trematodeの一般語はfluke*distoma means "sucker"
==characteristics==