any eellike marine or freshwater fish of the order Petromyzoniformes, having a circular, suctorial mouth with horny teeth for boring into the flesh of other fishes to feed on their blood.
Origin: 1250–1300; Middle English lampreye < Anglo-French *lampreie (Old French lamproie) < Late Latin lamprēda; replacing Old English lamprede < Medieval Latin lampreda
c.1200, from O.Fr. lampreie, from M.L. lampreda, from L.L. lampetra "lamprey," probably lit. "lick-rock," from L. lambere "to lick" + petra "rock." The animals attach themselves to things with their sucker-like mouths.