| chromogenic | Producing colour, a chromogenic colony is a pigmented colony. Origin: Gr. Gennan = to produce (09 Oct 1997) |
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| chromogenic compounds | Colourless, endogenous or exogenous pigment precursors that may be transformed by biological mechanisms into coloured compounds; used in biochemical assays and in diagnosis as indicators, especially in the form of enzyme substrates. Synonym: chromogens (not to be confused with pigment-synthesizing bacteria also called chromogens). (12 Dec 1998) |
| chromogenic label | A molecule which can be used as a label to a biological probe molecule because it forms a coloured compound when the probe molecule is attached to its target. (09 Oct 1997) |