UROPYGIUM Meaning of UROPYGIUM in English [ ˌjʊərə(ʊ)'pɪdʒɪəm ]■ noun Zoology the rump of a bird.Derivativesuropygial adjective OriginC18: via med. L. from Gk ouropugion . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004