Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of a group of two to four united cells which occupy the axial part of the ocelli, or ommatidia, of the eyes of invertebrates, and contain the terminal nerve fibrillae.

from the GNU version of the Collaborative International Dictionary of English

  • n. One of group of two to four united cells which occupy the axial part of the ocelli, or ommatidia, of the eyes of invertebrates, and contain the terminal nerve fibrillæ. See Illust. under ommatidium.

from The Century Dictionary and Cyclopedia

  • n. One of those cells of the embryonic eye of arthropods which secrete the chitinous crystalline cone on that surface which is toward the axis of the ommatidium. Also called vitrella.

Etymologies

retina + Ancient Greek -φόρος ("bearer"). (Wiktionary)

Examples

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