[awr-thuh-jen-uh-sis] /ˌɔr θəˈdʒɛn ə sɪs/
Sociology. a hypothetical parallelism between the stages through which every culture necessarily passes, in spite of secondary conditioning factors.
the theory that there is a series of stages through which all cultures pass in the same order
[awr-thoh-juh-net-ik] /ˌɔr θoʊ dʒəˈnɛt ɪk/ adjective 1. pertaining to or exhibiting orthogenesis.
[awr-thuh-jen-ik] /ˌɔr θəˈdʒɛn ɪk/ adjective 1. Psychology. of, concerned with, or providing corrective treatment for mentally retarded or seriously disturbed children: orthogenic class. 2. . /ˌɔːθəʊˈdʒɛnɪk/ adjective 1. (med) relating to corrective procedures designed to promote healthy development 2. of or relating to orthogenesis
orthognathia or·tho·gna·thi·a (ôr’thō-nā’thē-ə, -nāth’-, ôr’thŏg-) n. The study of the causes and treatment of conditions related to malposition of the jawbones.
[awr-thog-nuh-thuh s] /ɔrˈθɒg nə θəs/ adjective, Craniometry. 1. straight-jawed; having the profile of the face vertical or nearly so; having a gnathic index below 98. /ɔːˈθɒɡnəθəs/ adjective 1. (anatomy) having normally aligned jaws orthognathic or·tho·gnath·ic (ôr’thō-nāth’ĭk, ôr’thəg-) or or·thog·na·thous (ôr-thŏg’nə-thəs) adj.