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[mass noun] A polyunsaturated fatty acid found especially in fish oils.
- ‘Fish provide varying amounts of omega-3 fatty acids in the form of docosahexaenoic acid and eicosapentaenoic acid.’
- ‘Your brain needs long-chain polyunsaturated fatty acids to function properly and two types - eicosapentaenoic acid and docosahexaenoic acid - have come up trumps.’
- ‘Fish is the recommended source of omega - 3s because only marine life contains eicosapentaenoic acid and docosahexaenoic acid, the two most accessible forms of the fats.’
- ‘Oils from deep sea fish are a rich source of omega - 3 polyunsaturated fatty acids, particularly eicosapentaenoic acid and docosahexaenoic acid.’
- ‘According to a new book, eicosapentaenoic acid is a substance that can ‘significantly alleviate the symptoms of depression, even in its most severe forms.’’
1960s: from Greek eicosa- twenty (the number of carbon atoms in the molecule) + penta- five (the number of unsaturated bonds) + -ene + -oic on the pattern of methanoic.
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