polyunsaturated

Of or relating to long-chain carbon compounds, especially fatty acids, having two or more double bonds between the carbon atoms. Foods containing polyunsaturated fatty acids help reduce blood cholesterol levels and include sunflower, soybean, sesame seed, and corn oils and cold-water fish such as salmon.

of, or relating to long chain organic compounds that have multiple double bonds; polyunsaturated fatty acids are essential to human nutrition

(of long-chain carbon compounds especially fats) having many unsaturated bonds