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[hahy-puh-dur-mis] /ˌhaɪ pəˈdɜr mɪs/
Zoology. an underlayer of epithelial cells in arthropods and certain other invertebrates that secretes substances for the overlying cuticle or exoskeleton.
Botany. a tissue or layer of cells beneath the epidermis.
Also, hypoderm [hahy-puh-durm] /ˈhaɪ pəˌdɜrm/ (Show IPA).
Origin of hypodermis
First recorded in 1865-70; hypo- + -dermis
Related forms
hypodermal, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for hypoderm
Historical Examples
  • Some cells about the fibro-vascular bundle acquire thick walls with the appearance and chemical reaction of the hypoderm cells.

    The Genus Pinus George Russell Shaw
  • The stomata of Pine leaves are depressed below the surface and interrupt the continuity of epiderm and hypoderm.

    The Genus Pinus George Russell Shaw
  • Epiderm and hypoderm of the leaf similar, appearing as a single tissue; resin-ducts external.

    The Genus Pinus George Russell Shaw
  • Its leaf-section is peculiar in the remarkable size of the inner cells of the hypoderm, especially in the angles of the leaf.

    The Genus Pinus George Russell Shaw
  • The cells of epiderm and hypoderm may be so similar that they appear to form a single tissue.

    The Genus Pinus George Russell Shaw
British Dictionary definitions for hypoderm


a variant of hypodermis
Derived Forms
hypodermal, adjective


(botany) a layer of thick-walled supportive or water-storing cells beneath the epidermis in some plants
(zoology) the epidermis of arthropods, annelids, etc, which secretes and is covered by a cuticle
Word Origin
C19: from hypo- + epidermis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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hypoderm in Medicine

hypodermis hy·po·der·mis (hī'pə-dûr'mĭs) or hy·po·derm (hī'pə-dûrm')

  1. An epidermal layer of cells that secretes an overlying chitinous cuticle, as in arthropods.

  2. See tela subcutanea.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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