from The Century Dictionary and Cyclopedia
- n. In chem., a normal chromate, as of potassium, K2CrO4, in contradistinction to a dichromate or pyrochromate, as K2Cr2O7: the former may be viewed as K2O.CrO3, and the latter as K2O.2CrO3.
- n. In psychology, a totally color-blind person; one who is afflicted with monochromasy.
Sorry, no etymologies found.
By adding monochromate of potash to an acid solution of nitrate of silver, a particularly fine ochre-red is obtained.