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tapetum

/tuh-pee-tuhm/US // təˈpi təm //UK // (təˈpiːtəm) //

墙纸,壁纸,壁紙,墙报

Definitions

n.名词 noun
  1. 1

    plural ta·pe·ta [tuh-pee-tuh]. /təˈpi tə/.

    • : Botany. a layer of cells often investing the archespore in a developing sporangium and absorbed as the spores mature.
    • : Anatomy, Zoology. any of certain membranous layers or layered coverings, as in the choroid of the eyes of certain animals.

Examples

  • The subject, however, of the various colours of the tapetum in different animals is not yet understood.

  • Iris tapetum: the pigment layer of the compound eye just below the crystalline cone.

  • The tapetum lucidum is found in Ungulata, Cetacea and Carnivora.