circumvallate papilla noun
: any of the usually 8 to 12 large papillae near the back of the tongue each of which is surrounded with a marginal sulcus and supplied with taste buds responsive especially to bitter flavors—called also vallate papilla
Seen & Heard
What made you want to look up circumvallate papilla? Please tell us where you read or heard it (including the quote, if possible).