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Glite Dictionary
protocone

protocone

9.9
A main raised point on the top back tooth of some mammals, especially early mammals
  • noun
  • /ˈproʊtəˌkoʊn/
  • Specialized
: protocono
  • There are two cusps labially (on the side of the cheek), the paracone and the metacone, and one cusp lingually (on the tongue side), the protocone.

Examples

  • Cusps (elevated areas) on upper molars are indicated as circles: protocone (pr.), paracone (pa.), metacone (me.), and parastyle (ps).

    Academic text (2001)

  • In some mammal species, the protocone is crucial for grinding food between the upper molars.

  • The protocone is the largest cusp on the upper molars of some early mammals.

  • When examining an old fossil, researchers identified the protocone on its upper molar teeth.

Surface Forms

protocone singular
protocones plural

Morphology

protocone = cone (semi-transparent) = proto + cone

The form clearly combines 'proto' and 'cone', but the specialized anatomical meaning is not fully predictable for an average learner.

Etymology

Protocone combines proto- ('first') and cone ('cone', like an ice-cream cone). A helpful image is the 'first cone' or main point on the upper molar — the big bump used for chewing, which is why this tooth feature is called the protocone.