Dichromat
/ˈdaɪ.kroʊ.mæt/noun
A person or organism that perceives or uses two colors, or has two color-sensitive types, especially in vision.
Did you know?The first element comes from Greek *di-* “two,” the same ancient root behind words like *dilemma* and *dioxide*, while *chrom-* is the color-root that also gave us *chrome* and *chromatic*.
Etymological Timeline
Proto-Indo-European
PIE
*dwóh₁
“two”
Ancient Greek
Greek
δι- (di-)
“two, double”
Proto-Indo-European
PIE
*ḱer- / *ḱreh₂-
“to color, appear red”
Ancient Greek
Greek
χρῶμα (chrôma)
“color, complexion”
19th Century
English
dichromat
“a person or organism with two-color vision or two-color sensitivity”
Modern English
English
dichromat
“a person or organism that perceives or uses two colors”