gnathionn.
/ˈneɪθɪɒn/ Anatomy.
In the cranium, the lowest point of the inferior border of the mandible in the mid-line; the menton.
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gonion1878
gnathion1888
menton1920
1888 Catal. Marsupialia Brit. Mus. p. viii Basal length.—From the ‘basion’, or lower front edge of the foramen magnum, to the ‘gnathion’.
1920 H. H. Wilder Lab. Man. Anthropometry i. 44 Gnathion (gn). The lowest median point on the lower border of the mandible.
1951 Notes & Queries Anthrop. (ed. 6) i. 12 The distance between the nasion and the gnathion, which is the lowest and most anterior point on the lower border of the lower jaw.
1968 D. H. Enlow Human Face xii. 281/1 The subjective location of gonion and menton (or gnathion), another method of forming the mandibular plane, tends to be just that.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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n.1888