'calyculus' definitions:

Definition of 'calyculus'

From: WordNet
noun
A group of bracts simulating a calyx as in a carnation or hibiscus [syn: epicalyx, false calyx, calycle, calyculus]
noun
A small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp) [syn: calyculus, caliculus, calycle]