Gwin"i*ad (gw&ibreve;n"&ibreve;*ăd), n. [W. gwyniad a whiting, the name of various fishes, fr. gwyn white.] (Zoöl.) A fish (Coregonus ferus) of North Wales and Northern Europe, allied to the lake whitefish; -- called also powan, and schelly. [Written also gwyniad, guiniad, gurniad.]