Chin
The chin was an area on one's face where the two sides of the jaw came together.

In 2151, while taking a photograph of Jonathan Archer,  asked him to tilt his chin up. ()

In 2366, Geordi La Forge got a left hook to the chin while the crew of the  was experiencing the side effects of Sarek's Bendii Syndrome. ()

In 2377, The Doctor said he understood Lewis Zimmerman's motivations for creating his program in his own likeness, saying "Compassionate eyes and a strong chin can go a long way". ()

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Anatomy