tomcod, n. [Tom (see Tomboy) + cod: cf. F. tacaud whiting pout, American Indian tacaud, literally, plenty fish.].
A small edible American fish (Microgadus tomcod) of the Codfish family, very abundant in autumn on the Atlantic coast of the Northen United States; -- called also frostfish. See Illust. under Frostfish. [1913 Webster]