prosthionn.
/ˈprɒsθiːɒn/, U.S. /ˈprɑsθiˌɑn/ Physical Anthropology, Anatomy, and Zoology.
The most anterior or lowest point of the alveolar process of the maxilla in the median plane (between the two central incisors).
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the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > jawbones > upper > parts of or associated with
intermaxillary1834
canine fossa1835
canine ridge1835
intermaxilla1882
juga alveolaria1887
prosthion1901
1901 Amer. Anthropologist 3 36 Arrange the skull for the above drawings with the alveolo-condylion plane horizontal; this plane is determined by the occipital condyles and prosthion.
1937 Amer. Jrnl. Physical Anthropol. 22 486 Prosthion has..been generally used to designate both the most forward and the lowest points... The distinction is made, however, by Buxton and Morant, who call the most forward point prosthion and the lowest the alveolar point.
1974 Moore & Lavelle Growth of Facial Skeleton in Hominoidea iv. 196 Up to the stage of eruption of the first permanent molar, the face of the orang utan is growing strongly downwards and forwards. Subsequently, the face begins to tilt so that the prosthion..moves forwards and somewhat upwards.
1989 Jrnl. Zool. 219 125 Two measurements were taken from the frontal parts of the skull: in the upper jaw, the distance between the front of the maxilla (prosthion) and the anterior margin of the socket of the carnassial tooth P4.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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n.1901