omega-6 fatty acid, omega-6(noun)

a polyunsaturated fatty acid whose carbon chain has its first double valence bond six carbons from the beginning

omega-6 fatty acid(Noun)

any polyunsaturated fatty acid having a double bond between the sixth and seventh carbon atoms from the end of the molecule farthest from the carboxylic acid; although they are essential fatty acids, there is evidence that excess levels can cause a number of diseases