: the vascular, thick layer of the skin lying below the epidermis and above the superficial fascia that contains fibroblasts, macrophages, mast cells, B cells, and sensory nerve endings and has an extracellular matrix composed of proteoglycans and glycoproteins embedded with collagen and elastin fibers
called also corium, cutis
see hair illustration
: layer of skin or tissue
endodermis
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Merriam-Webster unabridged
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