Webster’s Revised Unabridged Dictionary · 1913
Roundfish
Round′fish (·fĭsh′), n. (Zoöl.) (a) Any ordinary market fish, exclusive of flounders, sole, halibut, and other flatfishes. (b) A lake whitefish (Coregonus quadrilateralis), less compressed than the common species. It is very abundant in British America and Alaska.