fatty acid
US /ˈfæt.i ˌæs.ɪd/
UK /ˈfæt.i ˌæs.ɪd/

1.
acide gras
a carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
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Omega-3 fatty acids are essential for brain health.
Les acides gras oméga-3 sont essentiels pour la santé du cerveau.
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Saturated fatty acids are commonly found in animal fats.
Les acides gras saturés se trouvent couramment dans les graisses animales.