Definition: one of up to 12 projections from the dorsum of the tongue forming a row anterior to and parallel with the sulcus terminalis; each papilla is surrounded by a circular trench (fossa) having a slightly raised outer wall (vallum); on the sides of the vallate papilla and the opposed margin of the vallum are numerous taste buds.
Synonym(s): papillae vallataeTA, circumvallate papillae
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Examples: glitazone, GI cocktail, etc.