Omega-6 Fatty Acid Definition

noun

Any of several polyunsaturated fatty acids, including linoleic acid, that are essential for human metabolism, found in meats, nuts, beans, and vegetable oils such as canola and soybean oil.

American Heritage

Synonyms:

Synonyms:
omega-6

Origin of Omega-6 Fatty Acid

So called because the first double bond in the chain of carbon atoms in such fatty acids is found between the sixth and seventh atoms when counted from the omega end of the chain

From American Heritage Dictionary of the English Language, 5th Edition