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tragion

[trey-jee-on]
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noun, plural tra·gi·a [trey-jee-uh] /ˈtreɪ dʒi ə/, tra·gi·ons. Cephalometry.
  1. a point in the depth of the notch just above the tragus of the ear.
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Origin of tragion

First recorded in 1560–70; trag(us) + -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018