trigonum

[ trahy-goh-nuhm ]

/ traɪˈgoʊ nəm /

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noun, plural tri·go·na

[trahy-goh-nuh]. /traɪˈgoʊ nə/. Anatomy.

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Origin of trigonum

First recorded in 1720–30, trigonum is from the Latin word trigōnum triangle. See trigon

The front of the head is more inclined than that of trigonum (fig. 301).
The Common Spiders of the United States|James Henry Emerton
The os trigonum tarsi has been mistaken for a fracture of the talus.
Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition.|Alexander Miles
In interpreting radiograms of injuries in this region, care must be taken not to mistake the os trigonum tarsi for a fracture.
Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition.|Alexander Miles