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triradius

American  
[trahy-rey-dee-uhs] / traɪˈreɪ di əs /

noun

Physical Anthropology.
triradii, plural triradiuses plural
  1. a Y -shaped group of ridges on the palm of the hand at the base of each finger.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of triradius

tri- + radius

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

British researchers measure the angle between the axial triradius and those at the base of the index and little fingers.

From Time Magazine Archive

The crucial one is the axial triradius; on most palms it is just above the first flesh crease where hand joins wrist.

From Time Magazine Archive

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