Pseudopupil

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A dark spot that moves across the compound eye of an invertebrate as it is rotated, caused by absorption and reflection of incident light by the ommatidia.

Etymology

From pseudo- + pupil.

Related phrases

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