Ŏr’thog-nā’thous, a.
a. [Gr. ὀρθός, straight, erect, and γνάθος, jaw.] Having a skull in which the bones of the front of the head are above the jaws, or do not recede backward from them. See PROG-NATHOUS. Retzius.
a. [Gr. ὀρθός, straight, erect, and γνάθος, jaw.] Having a skull in which the bones of the front of the head are above the jaws, or do not recede backward from them. See PROG-NATHOUS. Retzius.