-_ləs noun
( plural calycu·li -ˌlī, -ē)
Etymology: New Latin, modification (influenced by English calycle and Latin calyculus small flower bud, calyx) of English calicle, from Latin caliculus small cup, diminutive of calic-, calix cup — more at chalice
: a small cup-shaped structure (as a taste bud, an optic cup, or a cavity of a coral containing a polyp)