Linolenic acid is a type of fatty acid. It can refer to either of two octadecatrienoic acids (i.e. with an 18-carbon chain and three double bonds, which are found in the cis configuration), or a mixture of the two. Linolenate (in the form of esters of linolenic acid) is often found in vegetable oils; traditionally, such fatty acylates are reported as the fatty acids:
References
Linolenic acid Wikipedia(Text) CC BY-SA