adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A color blind person. dated
2. 2
   Alternative form of Daltonian. alt-of, alternative

Adjective

1. 1
   Of or pertaining to John Dalton (1766-1844), English chemist, physicist, and pioneer of modern atomic theory who also researched colour blindness.

Etymology

From Dalton + -ian.

Related phrases

colour blindness

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