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umbo

/uhm-boh/US // ˈʌm boʊ //UK // (ˈʌmbəʊ) //

嗯哼,呒呒,呒呒呒

Definitions

n.名词 noun
  1. 1

    plural um·bo·nes [uhm-boh-neez], /ʌmˈboʊ niz/, um·bos.

    • : a boss on a shield, as one at the center of a circular shield.
    • : any similar boss or protuberance.
    • : Zoology. the beak of a bivalve shell; the protuberance of each valve above the hinge.
    • : Anatomy. the depressed area on the outer surface of the tympanic membrane.
    • : a blunt or rounded protuberance arising from a surface, as on a pine cone scale.

Examples

  • One species (C. discors) is pale green, with radiating lines from umbo to margin.

  • The hand was protected by a hollow conical boss or umbo, fixed to the wood by its brim, but projecting considerably.

  • It is a light pelagic form, with paper-like plates and angularly bent carina, with a prominent umbo.

  • One is in the Spanish-Moorish style and of a convex shape, with iron bordering and umbo, and a lining of yellow brocade.

  • The paracentesis knife is inserted boldly through the membrane a little behind and above the umbo.