From Longman Dictionary of Contemporary Englishsirloinsir‧loin /ˈsɜːlɔɪn $ ˈsɜːr-/ (also sirloin steak) noun [countable, uncountable] DFa good-quality piece of beef which is cut from the lower part of a cow’s back
Examples from the Corpus
sirloin• The best sirloin steaks are the pin-bone and flat-bone steaks because Of their neat muscle structure.• That particular mouthful amounted to thick slices of boiled sirloin accompanied by a pancake.• For grilling, choose top loin, sirloin, rib eye, Porterhouse or bone steaks.• The Carvery every lunch time serves prime roast sirloin.• An excellent sliced sirloin which followed was more familiar.• Boning and muscle-boning of the sirloin gives meaty cuts with a variety of names that confuse the consumer.Origin sirloin (1400-1500) Old French surlonge, from sur “above” + loigne, longe ( → LOIN) 