Definitions for "Essential fatty acid"
a type of fatty acid which cannot be synthesized by the human body and which must be obtained from the diet. Linoleic and linolenic acids are examples of essential fatty acids.
A long, fat-containing molecule involved in human body processes that is synthesized by plants but not by the human body and is therefore a dietary requirement.
A polyunsaturated fatty acid that cannot be synthesized by a cell or organism and must be supplied as a nutrient.