papillae

'papillae'

[papilla.n.01] as in: (botany) a tiny outgrowth on the surface of a petal or leaf

'papillae'

[papilla.n.02] as in: a small nipple-shaped protuberance concerned with taste, touch, or smell

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Examples:
the papillae of the tongue

'papillae'

[papilla.n.03] as in: a small projection of tissue at the base of a hair or tooth or feather