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papilla Definition

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papilla
noun(pa-pil-la)
a small projecting body part similar to a nipple in form:
papilla
noun(pa-pil-la)
a vascular process of connective tissue extending into and nourishing the root of a hair, feather, or developing tooth
papilla
noun(pa-pil-la)
any of the vascular protuberances of the dermal layer of the skin extending into the epidermal layer and often containing tactile corpuscles
papilla
noun(pa-pil-la)
the apex of a renal pyramid which projects into the cavity of a calyx of the kidney and through which collecting ducts discharge urine

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