1. a polyunsaturated fatty acid with 18 carbon atoms; the only omega-3 fatty acid found in vegetable products; it is most abundant in canola oil; a fatty acid essential for nutrition;
WordNet (r) 3.0 (2006):
alpha-linolenic acid
n 1: a polyunsaturated fatty acid with 18 carbon atoms; the only
omega-3 fatty acid found in vegetable products; it is most
abundant in canola oil; a fatty acid essential for
nutrition