Definition of "fish-oil" [fish-oil]

• Oil obtained from the bodies of fishes and marine animals, as from whales, porpoises, seals, pilchards, sharks' and cods' livers, etc.; specifically, cod-liver oil. (noun)

The Century Dictionary (Public Domain)

• "Other tips: Dermatologists report seeing improved skin in patients who take fish-oil pills, Irwin says."
• "Essence of green-lip mussels from a clean bay in that country, distilled into a fish-oil capsule."
• "And if you decide to take a fish-oil supplement, choose one labeled “USP Verified,” which indicates that it meets standards for purity and potency set by the U.S. Pharmacopeia, a nongovernmental authority, and have what the USP considers acceptable limits of contaminants."