Definitions for "Fat-soluble"
The class of substances found primarily within the fatty portion of foods. The fat-soluble vitamins, A, D, E, K usually occur in the fats and oils of foods. They are absorbed initially into the lymph glands and then the blood. They are less readily excreted and tend to remain in the body for longer periods of time than the water-soluble vitamins.
Dissolves in fat.
Fat-soluble substances are capable of being dissolved in fats.