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 (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.


(ˌhaɪpəˈdɜːmɪs) ,




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]


(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.
[1865–70; hypo- + (epi)dermis]
hy`po•der′mal, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hypodermis - layer of cells that secretes the chitinous cuticle in e.g. arthropods
layer - thin structure composed of a single thickness of cells
body covering - any covering for the body or a body part
References in periodicals archive ?
Recent discovery has found a vast number of mesenchymal stem cells in the hypodermis which lies below the dermal layer of the skin.
Interestingly, adult hypodermis appears to be least active in protein synthesis as it contains the lowest transcript levels of these genes.
It covers the whole body and consists of three layered tissues differing in cell composition, thickness, strength, and flexibility: the epidermis, the dermis, and the hypodermis (Murphree, 2017) (Fig.
The hemolymph side of the spermathecal hypodermis had muscle layers on both the reservoir and the duct (Fig.
Dystrophic calcification in medium size arteries with intimal proliferation is observed at the hypodermis level.
Nodular to diffuse dermatitis caused by mixed inflammatory cells was also present in dermis and hypodermis; those cells were mainly represented by eosinophils, histiocytes, and lymphocytes, together with few plasma cells and neutrophils.
These are; the epidermis, dermis and hypodermis (Darlenski and Fluhr, 2012).
The sclerenchyma girders extended over the mesophyll to form a distinct hypodermis (Figs 2 and 3).
For patients with deep skin wounds, all three skin layers -- the epidermis, dermis and hypodermis -- may be heavily damaged.
The biopsy of new lesions on the right forearm showed the granulomatous infiltrate in the superficial and deep dermis and hypodermis, composed of a mixture of foamy and epithelioid histiocytes and including scattered lymphocytes.