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papilla pa·pil·la (pə-pĭl'ə)
n. pl. pa·pil·lae (-pĭl'ē)
A small nipplelike projection, such as a protuberance on the skin, at the root of a hair or feather, or at the base of a developing tooth.
One of the small, round or cone-shaped protuberances on the top of the tongue that contain taste buds.
A pimple or pustule.