umbo

n. 盾心的浮雕装饰, 壳顶, 鼓膜凸 [医] 突, 圆头

发音

UK /ˈʌm.bəʊ/
其它
US /ˈʌm.boʊ/

词形变化

umboes umbones 复数 umbones umbos umbos 复数 umboes 复数

释义与例句

n.
  1. 1.

    The boss of a shield, at or near the middle and usually projecting, sometimes in a sharp spike.

    历史
  2. 2.

    A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane.

    An inward projection of the tympanic membrane of the ear.

    医学 生物
  3. 3.

    A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane.

    One of the lateral prominences just above the hinge of a bivalve shell.

    生物 动物学
  4. 4.

    A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane.

    A bump or protrusion on the cap of a mushroom or toadstool.

    生物 植物学

词汇关系

名词

上位词 1

convexity

整体词 4

eardrum myringa tympanic membrane tympanum

词源

Borrowed from Latin umbō (“a shield boss”). Doublet of umbone.

来源：wiktionary