Definition of genial tubercle in English:

genial tubercle

noun

Anatomy
  • Either of a pair of small bony prominences that are located one above the other on the posterior surface of the body of the mandible, on each side of the mandibular symphysis, and from which the genioglossal and geniohyoid muscles originate.

Origin

Mid 19th century; earliest use found in Todd's Cyclopaedia of Anatomy and Physiology.