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epidermis    音標拼音: [,ɛpəd'ɚməs]
n. 表皮,上皮

表皮,上皮

epidermis
n 1: the outer layer of the skin covering the exterior body
surface of vertebrates [synonym: {epidermis}, {cuticle}]

Periostracum \Per`i*os"tra*cum\, n.; pl. {Periostraca}. [NL.,
fr. Gr. peri` around ? shell of a testacean.] (Zool.)
A chitinous membrane covering the exterior of many shells; --
called also {epidermis}.
[1913 Webster]


Epidermis \Ep`i*der"mis\, n. [L., fr. Gr. ?; ? over ? skin,
fr. ? to skin. See {Tear}, v. t.]
1. (Anat.) The outer, nonsensitive layer of the skin;
cuticle; scarfskin. See {Dermis}.
[1913 Webster]

2. (Bot.) The outermost layer of the cells, which covers both
surfaces of leaves, and also the surface of stems, when
they are first formed. As stems grow old this layer is
lost, and never replaced.
[1913 Webster]

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英文字典中文字典相關資料:
  • Epidermis - Wikipedia
    The epidermis serves as a barrier to protect the body against microbial pathogens, oxidative stress (UV light), and chemical compounds, and provides mechanical resistance to minor injury
  • The Anatomy and Function of the Epidermis - Verywell Health
    The epidermis, the outermost layer of the skin, provides a protective barrier against UV radiation, chemicals, and microorganisms, including bacteria, viruses, and fungi
  • Layers of the Skin – Diagram, Structure, Function
    The epidermis is the thin, outermost layer of the skin, providing a protective barrier against environmental hazards Composed primarily of keratinized stratified squamous epithelium Contains no blood vessels; nutrients diffuse from the underlying dermis
  • Epidermis | Skin Layers, Keratinocytes Melanocytes | Britannica
    Epidermis, in zoology, protective outermost portion of the skin There are two layers of epidermis, the living basal layer, which is next to the dermis, and the external stratum corneum, or horny layer, which is composed of dead, keratin-filled cells that have migrated outward from the basal layer
  • Layers of the Epidermis: Anatomical Structure and Protective Functions
    The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental threats
  • Epidermis - Structure, Function Location
    The epidermis is the outermost layer of the skin, serving as the primary barrier between the external environment and the internal body As part of the integumentary system, it plays a vital role in protection, hydration, sensation, and immune defense





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