atelo-|ˈætɪləʊ|comb. form of Gr. ἀτελής imperfect, f. ἀ priv. + τέλος end, completion; used in many mod.L. terms of physiology, indicating some structural imperfection, as ateloˈglossia, imperfect development or malformation of the tongue; -ˈgnathia, of the jaws; -myˈelia, of the spinal marrow; -ˈstomia, of the mouth.