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  1. Oxford American Dictionary

    trans-fatty acid

    • IPA[ˌtranzˌfadē ˈasəd]

    美式

    • n.
      an unsaturated fatty acid of a type occurring in margarines and manufactured cooking oils as a result of the hydrogenation process, having a trans arrangement of the carbon atoms adjacent to its double bonds. Consumption of such acids is thought to increase the risk of atherosclerosis.

    • noun: trans-fatty acid, plural noun: trans-fatty acids