in'dex

That which points out or indicates. alveolar i. See gnathic i. breadth breadth i. The ratio between the greatest breadth of the skull and the least distance between two corresponding points in the temporal fo ae measured with calipers. breadth-height i. The ratio between the maximum breadth and the maximum height of a skull determined by the for-. 100 X height, -.. mula breadth • cephalic 1. An 1. of the cranium, especially the length breadth i. cerebral i. The ratio between the greatest transverse and anteroposterior diameters of the brain, facial i. The ratio between the greatest breadth and the greatest length of the face. gnathic i. The ratio between the basialyeolar length and the basinasal length (=100) of a skull. i. of opsonic extinction. The highest dilution of the blood serum at which the opsonin is demonstrable. length-breadth i. The ratio between the maximum length and the maximum breadth of a skull deioo X breadth termined by the formula length. length-height i. The ratio between the maximum length and the maximum height of a skull determined by the formula ioo X height. opsonic i. The power of length leukocytes, under various conditions, to incorporate bacteria by phagocytosis as compared to the normal, pelvic i. The ratio between the anteroposterior and the transverse diameter of the pelvis, refractive i. The ratio (constant for the same two media) between the sines of the angle of incidence and of the angle of refraction, when a ray of light pa ing from one medium to another undergoes deviation. thoracic i. The ratio between the anteroposterior diameter of the thorax measured at the level of the lower extremity of the sternum and the greatest transverse diameter at the same level. [Lat., indicare, to show.]