Achromatopsia

//ˈə.kɹɒ.mə.tɒp.siə// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Total color blindness; the total inability to distinguish colors due to the absence of cone cells in the eyes. countable, uncountable

Synonyms

All synonyms
achromatismachromatopiaachromatopsycolor blindness

Etymology

From German Achromatopsie, from Ancient Greek ἀχρώματος (akhrṓmatos), from ἀ- (a-, “without”) + χρῶμα (khrôma, “color”), + -opsie. By surface analysis, a- + chromato- + -opsia.

Related phrases

cerebral achromatopsiacolor blindness

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