• synonyms


noun, plural re·tin·u·lae [ri-tin-yuh-lee] /rɪˈtɪn yəˌli/. Anatomy.
  1. a group of elongate neural receptor cells forming part of an arthropod compound eye: each retinula cell leads to a nerve fiber passing to the optic ganglion.
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Origin of retinula

From New Latin, dating back to 1875–80; see origin at retina, -ule
Related formsre·tin·u·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for retinula

Historical Examples

  • Retinula -ae: the retina of a single ocellus: the nerve fibres or cells between pigment cells and retina of the compound eye.

    Explanation of Terms Used in Entomology

    John. B. Smith

  • Rhabdom: the rod lying in the axis of the retinula, below the crystalline cone of an eye.