grindle n 1: primitive long-bodied carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America [syn: {bowfin}, {grindle}, {dogfish}, {Amia calva}]
Grindle \Grin"dle\, n. (Zool.) The bowfin; -- called also {Johnny Grindle}. [Local, U. S.] [1913 Webster]