paraconid

from The Century Dictionary.

• noun That cusp in the lower molars and premolars of mammals which is homologous with the paracone in the upper molars. In the lower teeth the paraconid is situated on the lingual side of the tooth-crown, while in the upper jaw its homologue is on the labial side. See cut under tooth, 1.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun dentistry The mesiobuccal cusp of a lower molar tooth