- a pale-yellow, fixed oil, extracted from the liver of the common cod or of allied species, used in medicine chiefly as a source of vitamins A and D.
Origin of cod-liver oil
First recorded in 1605–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cod-liver oil
Keep up her strength, and complete the cure by a small tea-spoonful of cod-liver-oil twice a day for a fortnight.Cats
W. Gordon Stables
- an oil extracted from the livers of cod and related fish, rich in vitamins A and D and used to treat deficiency of these vitamins
- An oil obtained from the liver of cod and related fishes and used as a dietary source of vitamins A and D.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.