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Glite Dictionary
trigonid

trigonid

1 9.9
The three main bumps on the front inside of a lower back tooth that help cut food
  • noun
  • /ˈtraɪɡənɪd/
  • Specialized
: trigonido
  • Lower molars of primitive mammals have a high anterior part (the trigonid) with three large cusps, and a low posterior part (the talonid) with two or three cusps.

Examples

  • The trigonid is formed by three prominent cusps at the front inner edge of a lower molar tooth in mammals.

  • When examining the lower molars, the trigonid consists of three key cusps that are crucial for effective chewing.

  • In mammals, the unique structure of the trigonid in lower molars features three main cusps that aid in grinding food.

Surface Forms

trigonid singular
trigonids plural

Morphology

trigonid = trigon (opaque) = trigon + id

Formally built from 'trigon' (triangle) + '-id', so the morphological formation is regular though the specific anatomical sense is technical.

Etymology

The word trigonid comes from Greek parts tri- 'three' and gon 'angle', so think of a small 'triangle'. That's why a trigonid is the group of three main points at the front inner part of a lower molar, and these three points form a triangle to help slice food.