Is “Orthochromatic” a Scrabble word?
Yes
ORTHOCHROMATIC
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Orthochromatic
adjective
1.Being uniformly sensitive across the entire visible range, and thus reproducing colours faithfully
2.Sensitive to all colours except red