hypoderma

== English == === Etymology === From hypo- +‎ -derma. === Noun === hypoderma (plural hypodermata) (botany) A layer of tissue beneath the epidermis in plants, performing the physiological function of strengthening the epidermal tissue. In phanerogamous plants it is developed as collenchyma. (zoology) An inner cellular layer which lies beneath the chitinous cuticle of arthropods, annelids, and some other invertebrates.