n.
Pronunciation: ' flük
Function: noun
Etymology: Middle English floke, fluke, from Old English fl ō c; akin to Old English fl ō h chip, Old High German flah smooth, Greek plax flat surface, and probably to Old English fl ō r floor ― more at FLOOR
Date: before 12th century
1 : FLATFISH
2 : a flattened digenetic trematode worm broadly : TREMATODE ― compare LIVER FLUKE