papilla

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pa·pil·la / pəˈpilə/ • n. (pl. -pil·lae / -ˈpilˌē; -ˈpilˌī/ ) a small rounded protuberance on a part or organ of the body. ∎  a small fleshy projection on a plant. DERIVATIVES: pap·il·lar·y / ˈpapəˌlerē/ adj. pap·il·late / ˈpapəˌlāt; pəˈpilit/ adj. pap·il·lose / ˈpäpəˌlōs; -ˌlōz/ adj.

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papilla (pă-pil-ă) n. (pl. papillae) any small nipple-shaped protuberance. Several different kinds of papillae occur on the tongue, in association with the taste buds. optic p. see optic (disc).
papillary adj.

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papilla nipple-like protuberance. XVIII. — L. (see PAP1).
So papillary XVII.

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papilla Any cone-shaped protuberance projecting from the surface of an organ or organism. Papillae occur, for example, on the tongue, in the kidneys, and, in plants, on the surface of many petals.

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papilla A small, blunt projection.