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Related to gonion: pogonion, gnathion


The outer point on either side of the lower jaw at which the jawbone angles upward.

[French, from Greek gōniā, angle; see genu- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -nia (-nɪə)
(Anatomy) anatomy the point or apex of the angle of the lower jaw
[C19: from New Latin, from Greek gōnia angle]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gonion - the craniometric point on either side at the apex of the lower jaw
craniometric point - a landmark on the skull from which craniometric measurements can be taken
jawbone, jowl, lower jaw, lower jawbone, mandible, mandibula, mandibular bone, submaxilla - the jaw in vertebrates that is hinged to open the mouth
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
* Gonion (Go)--constructed by bisecting the posterior ramal plane and mandibular plane,
(2) Also the position of gnathion which is used to form a line with gonion to measure the mandibular plane angle.
Patients who had short distance between gonion and menton points and/or distance between hyoid and mandibular plane >25 mm and/or sella-nasion-basion (B point) angle <76[degrees] and/or mandibular length <70 mm and/or the intermaxillary space length <75 mm and/or cranial base angle <127[degrees] were excluded.
(15), (16) Left and right Tr-Zy-Go angles: left and right zygomatic angles (formed by the left and right zygion point, bound to the trichion and gonion points).
Three anatomical bony landmarks- Nasion (Na), Condylon (Cy) and Gonion (Go) were selected and two anthropometric measurements (Na-Cy and Na-Go) taken with the mouth closed (in centric relation (CR) position of the temporomandibular joints) and wide open with the help of the sliding caliper and the subject sitting on the chair in relaxed state and head in the anatomical position
(2) Another case was discovered during a reanalysis of human bones excavated from a megalithic tomb at Millin Bay in County Down in 1953, which consisted of an adult male mandible with clear cut marks across the right ramus and gonion (Murphy 2003).
Cephalometric summar Measurement Standard Pretreatment Posttreatment [SIGMA] 396[+ or -]3 397 398 GoMe-SN ([degrees]) 32[+ or -]7 36 37 Maxillary height ([degrees]) 60 59 59 FMA ([degrees]) 25 27 28 SNA ([degrees]) 82[+ or -]2 80 80 SNB ([degrees]) 80[+ or -]2 76 76 ANB ([degrees]) 2 4 4 NperA (mm) -1 1.4 1.5 I-SN ([degrees]) 103 102 103 IMPA ([degrees]) 90 94 95 [SIGMA]: sum of inner angles; GoMe-SN: Gonion, Menton-Sella, Nasion; FMA: Frankfort-mandibular plane angle; SNA: Sella--Nasion-point A; SNB: Sella-Nasion-point B; ANB: point A-Nasion-point B; NperA: Nasion perpendicular point A; I-SN: Incisor-Sella, Nasion; IMPA: Incisor-mandibular plane angle
Var2 Direct distance between the right and left gonion. Var3 Direct distance from the highest point on the mandibular condyle to the gonion.