ACHROMATIC VISIONachromatic vision · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:ACHROMATIC VISIONTier 1Ordinal179Pythagorean80Classical170Reverse253Reverse Reduction100Standard906Final Large1556Ordinal159Reduced51Atbash455Isopsephy1484Ordinal188Abjad919