calyculus

Definitions of calyculus
  1. noun
    a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp)
    synonyms: caliculus, calycle
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    types:
    eyecup, optic cup
    (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
    type of:
    anatomical structure, bodily structure, body structure, complex body part, structure
    a particular complex anatomical part of a living thing
  2. noun
    a group of bracts simulating a calyx as in a carnation or hibiscus
    synonyms: calycle, epicalyx, false calyx
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    type of:
    bract
    a modified leaf or leaflike part just below and protecting an inflorescence
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