• WordNet 3.6
    • n calyculus a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp)
    • n calyculus a group of bracts simulating a calyx as in a carnation or hibiscus
    • ***
Century Dictionary and Cyclopedia
    • n calyculus Same as calycle, 1.
    • ***


In literature:

The outer membrane of the calyculus is by no means always absent.
"The Myxomycetes of the Miami Valley, Ohio" by A. P. Morgan
Perhaps the most striking characteristic of the present species, aside from its large size, is the peculiarly perforated cup or calyculus.
"The North American Slime-Moulds" by Thomas H. (Thomas Huston) MacBride