1. an unsaturated fatty acid whose carbon chain has more than one double or triple valence bond per molecule; found chiefly in fish and corn and soybean oil and safflower oil;
WordNet (r) 3.0 (2006):
polyunsaturated fatty acid
n 1: an unsaturated fatty acid whose carbon chain has more than
one double or triple valence bond per molecule; found
chiefly in fish and corn and soybean oil and safflower oil