Definition of dermis in English:



  • 1[mass noun] The skin.

    • ‘The reactive epithelium may extend into the superficial reticular dermis, simulating a carcinoma.’
    • ‘Occasionally, the upper reticular dermis also may be infiltrated, but by isolated single cells.’
    • ‘The dermal-epidermal junction, papillary dermis, and reticular dermis were assessed separately.’
    • ‘Mitotic figures are variably present, and tumor aggregates may extend into the reticular dermis or even subcutaneous fat.’
    • ‘Cigarettes independently damage the elastic fibers of the dermis and promote elastosis similar to that found in sun-exposed skin.’
    1. 1.1Anatomy The thick layer of living tissue below the epidermis which forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles, and other structures.
      • ‘The epidermis is devoid of blood vessels but is nourished by diffusion from capillaries in the underlying dermis.’
      • ‘The middle layer, or dermis, contains connective tissue, small blood vessels, sweat and oil glands, nerves, and cells that produce collagen, called fibroblasts.’
      • ‘Although it is composed of two primary layers, the outer epidermis and the inner dermis, it also contains arteries, veins, nerve fibers, sweat glands and hair follicles among other things.’
      • ‘The biopsy should include surrounding skin with underlying dermis and connective tissue so that the pathologist can evaluate the depth of stromal invasion.’
      • ‘The thicker or inner layer of the dermis contains blood vessels, hair follicles, nerve endings, sweat and sebaceous glands.’
      epidermis, dermis
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Mid 19th century: modern Latin, suggested by epidermis.