单词 | quadricuspid |
释义 | > as lemmasquadricuspid quadricuspid adj. Brit. /ˌkwɒdrᵻˈkʌspɪd/ , U.S. /ˌkwɑdrəˈkəspəd/ [after scientific Latin quadricuspidus (1780 as a specific name)] Anatomy and Zoology (originally of a tooth, later also of a heart valve) having four cusps or points; cf. tricuspid adj.ΘΚΠ the world > life > the body > digestive or excretive organs > digestive organs > mouth > substance or parts of teeth > [adjective] > crown and parts cuspidate1693 coronary1823 multicuspid1838 quadricuspid1839 multicuspidate1841 quadricuspidate1841 cuspidal1867 intracoronal1940 1839 Penny Cycl. XIV. 461/2 The lower two grinders are narrower than the upper ones, and both quadricuspid. 1947 Amer. Heart Jrnl. 34 201/8 (table) Quadricuspid pulm. valve. 1993 Jrnl. Thoracic & Cardiovascular Surg. 106 1133 The truncal valve was bicuspid in 11 hearts, tricuspid in 25 hearts, and quadricuspid in eight hearts. 1997 Mem. Queensland Mus. 41 193/1 A more extensive posterolingual cingular shelf..appeared to anticipate development of the quadricuspid premolars of primitive zygomaturines. < as lemmas |
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