nor'ma

A line used to define the aspects of the face. n. frontal is. The contour of the face viewed from in front. n. inferior. The contour of the base of the skull, n. lateral is. The contour of the skull in profile, n. occipital is. The profile of the skull from behind, the skull being on a level with the eye. n. sagittal is. The contour of an anteroposterior section of the skull in the dian line. n. temporal is. See n. lateral is, n. vertical is. The contour of a horizontal plane through the glabella. [Lat, norma, rule, model, pattern.]