Search Payr’s clamp Payr’s clamp /pī″ərz/ [Erwin Payr, German surgeon, 1871–1946; AS, clam, fastener] , a heavy clamp used in GI surgery. Tweet Telegram VK Random Words sublethal allele tomographic DSA imperforate anus isocrotic dromostanolone propionate pelvic outlet irid- fludeoxyglucose F 18 per contiguum