- trans fatty acid - a fatty acid that has been been produced by hydrogenating an unsaturated fatty acid (and so changing its shape); found in processed foods such as margarine and fried foods and puddings and commercially baked goods and partially hydrogenated vegetable oils
--1 is a kind of fatty acid
--1 is a substance of margarine, margarin, oleo, oleomargarine, marge
--1 has particulars: elaidic acid