caliculus

Definitions of caliculus
  1. noun
    a small cup-shaped structure (as a taste bud or optic cup or cavity of a coral containing a polyp)
    synonyms: calycle, calyculus
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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
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