preparacristaとは 意味・読み方・使い方

名詞

preparacrista (plural preparacristas)

1. (dentistry) A crista directed anteriorly from the vicinity of the paracone apex, confluent with the precingulum.
   • (Can we date this quote?), A new specimen of a small dichobunoid artiodactyl from the Eocene Pondaung Formation, Myanmar‎:

     The metaconule is smaller than the protocone. The preparacrista extends mesially, linking to the parastyle.

関連する語

• postparacrista