alpha-linolenic acid

noun
al·​pha-lin·​o·​le·​nic acid | \ˌal-fə-ˌli-nə-ˌlē-nik-, -ˌlā- \

Medical Definition of alpha-linolenic acid 

: an isomer of linolenic acid that is an omega-3 fatty acid found especially in seeds (such as flaxseed and soybean) and the oil prepared from them … the body does convert alpha-linolenic acid from flaxseed oil into the same type of omega-3 fatty acids found in fish oil in a somewhat slow and inefficient process. — Pat Kendall, The Gazette (Colorado Springs, Colorado), 28 Mar. 2001 abbreviation ALA

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