From German - English Ding/FreeDict dictionary ver. 1.9-fd1: Groppe /ɡɾˈɔpə/ <fem, n, sg> common bullhead <n>, European bullhead <n>, miller's thumb <n> Synonyms: Westgroppe, Dickkopf, Kaulkopf, Rotzkopf, Mühlkoppe, Koppe, Dolm see: Cottus-Groppen
Groppe /ɡɾˈɔpə/ <fem, n, sg> common bullhead <n>, European bullhead <n>, miller's thumb <n> Synonyms: Westgroppe, Dickkopf, Kaulkopf, Rotzkopf, Mühlkoppe, Koppe, Dolm
see: Cottus-Groppen