"calyculus" in the noun sense
1. epicalyx, false calyx, calycle, calyculus
a group of bracts simulating a calyx as in a carnation or hibiscus
2. calyculus, caliculus, calycle
a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp)
Source: WordNet® (An amazing lexical database of English)
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