premolarn.adj.

Brit.

/ˌpriːˈməʊlə/, U.S.

/priˈmoʊlər/

Forms: 1800s praemolar, 1800s– premolar.

Origin: Formed within English, by derivation. Etymons: pre- prefix, molar n.

Etymology: < pre- prefix + molar n. Compare French prémolaire (1859).

A. n.

Each of the teeth situated at the side of a mammal's jaw between the canine and molar teeth. Cf. bicuspid n.In humans there are two bicuspid premolars in each quadrant in the permanent teeth. There are none in the deciduous or milk teeth, although the name premolars was formerly sometimes applied to the molars present there. Cf. false molar n. at false adj., adv., and n. Additions.

ΘΚΠ

the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [noun] > molar

wang-tootha1000

molara1350

cheek tooth1395

grinder1398

wangc1405

gumc1420

axle-tooth1483

wall-tooth?a1500

gum-tooth1535

chock-tooth1591

jaw-tooth1601

chaw-tooth1678

mill tooth1731

molendinar1823

true molar1825

false molar1827

premolar1842

bicuspid1876

1842 W. T. Brande Dict. Sci., Lit. & Art 326/2 The teeth..which are analogous to the bicuspids in man are called ‘præmolars’, or spurious molars [in mammalia generally].

1861 R. T. Hulme tr. C. H. Moquin-Tandon Elements Med. Zool. ii. iii. ii. 114 The Civet..is characterized by the possession of three false molars (premolars of Owen).

1872 St. G. Mivart Lessons Elem. Anat. vii. 253 The bicuspid molars of man..are in zootomy termed premolars because they are placed in front of the true molars.

1897 Q. Jrnl. Microsc. Sci. Jan. 441 The conviction that the deciduous premolar..must belong to the same series as the so-called ‘prelacteals’.

a1933 J. A. Thomson Biol. for Everyman (1934) I. xxi. 674 The anterior cheek teeth or premolars occur in two sets—‘milk teeth’ and permanent teeth.

1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xix. 311 The teeth are of two kinds: those that tear (incisors and canines) and those that grind (molars and pre-molars).

1991 L. Price Rottweilers (BNC) 74 The adult dog has 42 teeth; 12 incisors, 4 fangs or corner teeth, 16 premolars and 10 molars.

B. adj.

Designating a premolar.

ΘΚΠ

the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [adjective] > molar

molar1626

molary1689

premolar1851

1851 Abstr. Papers Royal Soc. 1843–50 5 917 These observations prove that..the Wart-hogs have deciduous teeth, succeeded vertically by premolar teeth.

1918 Philos. Trans. (Royal Soc.) B. 208 375 It has sharply defined margins, and is beyond question a facet caused by the wear of the first lower premolar tooth.

1995 J. Shreeve Neandertal Enigma (1996) vii. 199 Pine voles and meadow voles match feature to feature in every way except for the shape of a single cusp on one premolar tooth.

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online June 2022).

单词	premolar
释义	premolarn.adj. Brit. /ˌpriːˈməʊlə/, U.S. /priˈmoʊlər/ Forms: 1800s praemolar, 1800s– premolar. Origin: Formed within English, by derivation. Etymons: pre- prefix, molar n. Etymology: < pre- prefix + molar n. Compare French prémolaire (1859). A. n. Each of the teeth situated at the side of a mammal's jaw between the canine and molar teeth. Cf. bicuspid n.In humans there are two bicuspid premolars in each quadrant in the permanent teeth. There are none in the deciduous or milk teeth, although the name premolars was formerly sometimes applied to the molars present there. Cf. false molar n. at false adj., adv., and n. Additions. ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [noun] > molar wang-tootha1000 molara1350 cheek tooth1395 grinder1398 wangc1405 gumc1420 axle-tooth1483 wall-tooth?a1500 gum-tooth1535 chock-tooth1591 jaw-tooth1601 chaw-tooth1678 mill tooth1731 molendinar1823 true molar1825 false molar1827 premolar1842 bicuspid1876 1842 W. T. Brande Dict. Sci., Lit. & Art 326/2 The teeth..which are analogous to the bicuspids in man are called ‘præmolars’, or spurious molars [in mammalia generally]. 1861 R. T. Hulme tr. C. H. Moquin-Tandon Elements Med. Zool. ii. iii. ii. 114 The Civet..is characterized by the possession of three false molars (premolars of Owen). 1872 St. G. Mivart Lessons Elem. Anat. vii. 253 The bicuspid molars of man..are in zootomy termed premolars because they are placed in front of the true molars. 1897 Q. Jrnl. Microsc. Sci. Jan. 441 The conviction that the deciduous premolar..must belong to the same series as the so-called ‘prelacteals’. a1933 J. A. Thomson Biol. for Everyman (1934) I. xxi. 674 The anterior cheek teeth or premolars occur in two sets—‘milk teeth’ and permanent teeth. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xix. 311 The teeth are of two kinds: those that tear (incisors and canines) and those that grind (molars and pre-molars). 1991 L. Price Rottweilers (BNC) 74 The adult dog has 42 teeth; 12 incisors, 4 fangs or corner teeth, 16 premolars and 10 molars. B. adj. Designating a premolar. ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > types or spec. teeth > [adjective] > molar molar1626 molary1689 premolar1851 1851 Abstr. Papers Royal Soc. 1843–50 5 917 These observations prove that..the Wart-hogs have deciduous teeth, succeeded vertically by premolar teeth. 1918 Philos. Trans. (Royal Soc.) B. 208 375 It has sharply defined margins, and is beyond question a facet caused by the wear of the first lower premolar tooth. 1995 J. Shreeve Neandertal Enigma (1996) vii. 199 Pine voles and meadow voles match feature to feature in every way except for the shape of a single cusp on one premolar tooth. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online June 2022). < n.adj.1842
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