Frostfish
Frostfish , noun
(a)
(Zoology) The tomcod; -- so called because it is abundant on the New England coast in autumn at about the commencement of frost. See Tomcod.
(b)
(Zoology) The smelt.
(c)
(Zoology) A name applied in New Zealand to the scabbard fish (Lepidotus) valued as a food fish. [Local, United States]