[ sɔ:'rɪskɪən , -'rɪʃɪən ]
■ noun Palaeontology a dinosaur of a group with a pelvic structure resembling that of lizards. Compare with ornithischian .
Origin
C19: from mod. L. Saurischia (name of an order), from Gk sauros 'lizard' + iskhion 'hip joint'.