noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   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.

Etymology

From retina + Ancient Greek -φόρος (-phóros, “bearer”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.