Definition of "bichromatic" in English

adjective

1. Of two colors.

2. (mathematics) Describing a graph with edges of two possible colours.

3. (physics) Describing a spectrometer (or similar instrument or system) capable of analysing two wavelengths at the same time.

4. (music) Employing or relating to a quarter tone scale.

   • In 1926 Straube built a Bichromatic Quartertone Harmonium for Mordecai Sandberg with white keys for the whole tones, black keys for the half tones and brown keys for the quarter tones.