Top Definition
1) the ultimate place of glory that resides at the anteroinferior-most point of the mandible

2) IUSM-SB Class of 2016's (or, more specifically, stud corner... and Courtney) favorite part of the human anatomy

3) a craniometric point
Did you guys get #13 on the exam?

The one on the chin?
Yea it was gnathion!
by PSquaredFossa October 11, 2012
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