trans fat
noun
variants
or trans-fat
ˈtran(t)s-ˈfat
ˈtranz-
plural trans fats or trans-fats
: an unsaturated fat that contains a trans-fatty acid molecule which has a trans arrangement of double bonds in its hydrocarbon chain and that either occurs naturally in the meat and milk of ruminant animals (such as cows and sheep) or is manufactured by hydrogenating vegetable oil to create a fat (such as margarine or shortening) that is solid at room temperature
The trans fats to watch for are the ones artificially produced and placed in prepackaged foods or commercially prepared deep-fried foods. These trans fats are introduced during cooking or during the manufacturing process to help extend a product's shelf life. They also help some foods taste more satisfying.—Jennifer Moll
… if you are not minding your intake of another harmful fat called trans-fat, you might still be increasing your risk of heart disease. Indeed, whereas saturated fat raises the body's level of bad "LDL" cholesterol, trans-fat packs a double whammy by also reducing the good "HDL" cholesterol that protects against heart disease …—Anne Tergesen
compare saturated fat
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Merriam-Webster unabridged
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