metaconidn.

Brit.

/ˌmɛtəˈkəʊnɪd/, U.S.

/ˌmɛdəˈkoʊnəd/

Origin: Formed within English, by derivation. Etymons: metacone n., -id suffix⁴.

Etymology: < metacone n. + -id suffix⁴. Compare hypoconid n., paraconid n., and protoconid n. Compare also later deuteroconid n. at deutero- comb. form , entoconid n. at ento- Additions.

Zoology.

A cusp on the posterior lingual corner of a mammalian lower molar tooth.

ΘΚΠ

the world > animals > mammals > [noun] > parts of > (parts of) teeth

heel1833

metacone1888

metaconid1888

metaconule1888

paracone1888

paraconid1888

protocone1888

protoconid1888

protoconule1888

mesostyle1892

talonid1897

1888 H. F. Osborn in Amer. Naturalist 22 1073 Only the paracone and metaconids and hypoconids [of Amphitherium] have been observed heretofore.

1904 Ann. & Mag. Nat. Hist. 13 409 The antero-internal cusp not or scarcely divided into its constituent paraconid and metaconid.

1933 A. S. Romer Vertebr. Paleontol. xii. 248 The lower teeth tend also to square up..so that the four definitive cusps are the protoconid, metaconid, entoconid, and hypoconid.

1968 R. Zangerl tr. B. Peyer Compar. Odontol. 186 In the lower jaw..paraconid and metaconid are lingual.

1996 Jrnl. Vertebr. Paleontol. 16 303 Pterodon and Hyainailouros appear to be only distantly related to Hyaenodon, losing the metaconid (the diagnostic character of Hyaenodontinae) independently of the latter genus.

This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).

单词	metaconid
释义	metaconidn. Brit. /ˌmɛtəˈkəʊnɪd/, U.S. /ˌmɛdəˈkoʊnəd/ Origin: Formed within English, by derivation. Etymons: metacone n., -id suffix⁴. Etymology: < metacone n. + -id suffix⁴. Compare hypoconid n., paraconid n., and protoconid n. Compare also later deuteroconid n. at deutero- comb. form , entoconid n. at ento- Additions. Zoology. A cusp on the posterior lingual corner of a mammalian lower molar tooth. ΘΚΠ the world > animals > mammals > [noun] > parts of > (parts of) teeth heel1833 metacone1888 metaconid1888 metaconule1888 paracone1888 paraconid1888 protocone1888 protoconid1888 protoconule1888 mesostyle1892 talonid1897 1888 H. F. Osborn in Amer. Naturalist 22 1073 Only the paracone and metaconids and hypoconids [of Amphitherium] have been observed heretofore. 1904 Ann. & Mag. Nat. Hist. 13 409 The antero-internal cusp not or scarcely divided into its constituent paraconid and metaconid. 1933 A. S. Romer Vertebr. Paleontol. xii. 248 The lower teeth tend also to square up..so that the four definitive cusps are the protoconid, metaconid, entoconid, and hypoconid. 1968 R. Zangerl tr. B. Peyer Compar. Odontol. 186 In the lower jaw..paraconid and metaconid are lingual. 1996 Jrnl. Vertebr. Paleontol. 16 303 Pterodon and Hyainailouros appear to be only distantly related to Hyaenodon, losing the metaconid (the diagnostic character of Hyaenodontinae) independently of the latter genus. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1888
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