umbo

名词 n.
中文释义
英 /ˈʌm.bəʊ/    美 /ˈʌm.boʊ/

英文释义

名词 n.
  1. The boss of a shield, at or near the middle and usually projecting, sometimes in a sharp spike. historical
    — It is thirteen inches diameter, made of wood covered with leather, and an iron plate decorated with nails and mouldings; the boss or umbo projects four inches.
  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.
  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.
  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.

词形变化

umbones plural umbos plural umboes plural

词汇关系

衍生词
umbonal umbonic
相关词
boss

词源

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