frostfish

noun

1. A tomcod (either species of Microgadus).
2. A tomcod (either species of Microgadus).
3. Any of genus Benthodesmus cutlassfish
4. (US, dialectal, obsolete)A smelt.
5. (New-Zealand)A scabbardfish.

   “Another species of the renowned “frost fish,” but unlike the ordinary frost fish, it is of much greater length in proportion to depth. It well deserves its proper cognomen of the scabbard fish, its silver skin adding to the resemblance.”