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词汇 protoconid
释义

Definition of protoconid in English:

protoconid

noun ˌprəʊtə(ʊ)ˈkəʊnɪd
Zoology
  • A cusp on the anterior buccal corner of a mammalian lower molar tooth.

Origin

Late 19th century. From protocone + -id; so named as representing the apex of the primitive conical reptilian tooth.

Definition of protoconid in US English:

protoconid

nounˌprəʊtə(ʊ)ˈkəʊnɪd
Zoology
  • A cusp on the anterior buccal corner of a mammalian lower molar tooth.

Origin

Late 19th century. From protocone + -id; so named as representing the apex of the primitive conical reptilian tooth.

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