trichion
- noun
- Specialized
- The surgeon marked the trichion as a reference before making the incision.
Examples
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Researchers measured the distance from the trichion to various facial landmarks.
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The trichion is a crucial landmark in cranial anatomy.
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The trichion can shift position in patients with receding hairlines.
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Can you identify the trichion on this diagram?
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The surgeon marked the trichion as a reference before making the incision.
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Researchers measured the distance from the trichion to various facial landmarks.
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The trichion can shift position in patients with receding hairlines.
Synonyms
The point where the hairline meets the middle of the forehead
A spot on the skull used to measure its shape
Surface Forms
Morphology
trichion = trich + ion
Formed from the learned combining form 'trich-' (hair) + suffix '-ion', which is not a standalone English base and is not guessable to an average B1 learner.
Etymology
Trichion comes from the Greek root trich- meaning 'hair' and the ending -ion meaning 'small point', so it names the small point on the forehead where the hairline meets and is used by doctors or researchers as a measuring reference.