SUPERCILIARY Meaning of SUPERCILIARY in English [ ˌsu:pə'sɪlɪəri ]■ adjective Anatomy relating to the eyebrow or the region over the eye.OriginC18: from L. supercilium 'eyebrow' + -ary 1 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004