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hy·po·der·mis(hī′pə-dûr′mĭs) also hy·po·derm (hī′pə-dûrm′)
1. An epidermal layer of cells that secretes an overlying chitinous cuticle, as in arthropods.
2. Botany A layer of cells lying immediately below the epidermis.
3. Anatomy A subcutaneous layer of loose connective tissue containing a varying number of fat cells.
1. (Botany) botany a layer of thick-walled supportive or water-storing cells beneath the epidermis in some plants
2. (Zoology) zoology the epidermis of arthropods, annelids, etc, which secretes and is covered by a cuticle
[C19: from hypo- + epidermis]
hy•po•der•mis(ˌhaɪ pəˈdɜr mɪs)
1. an underlayer of epithelial cells in arthropods and certain other invertebrates that secretes the overlying cuticle or exoskeleton.
2. Bot. a tissue or layer of cells beneath the epidermis.