chromogen

[ kroh-muh-juhn, -jen ]

noun

1. Chemistry.
   1. any substance found in organic fluids that forms colored compounds when oxidized.
   2. a colored compound that, though not a dye itself, can be converted into a dye.
2. a chromogenic bacterium.

chromogen

/ ˈkrəʊmədʒən /

noun

1. a compound that forms coloured compounds on oxidation
2. a substance that can be converted to a dye
3. a bacterium that produces a pigment

Word History and Origins

Origin of chromogen¹

First recorded in 1855–60; chromo- + -gen

Example Sentences

In other words, an auxochrome in addition to the chromophore group transforms a colorless chromogen into a colored one.

From Project Gutenberg

The chromogen or pigmentary bacteria have occasionally been the means of working miracles.

From Project Gutenberg

A colorless chromogen is formed, which oxidizes to the green pigment in the air.

From Project Gutenberg