achromatic
UK /ˌæk.ɹəˈmæt.ɪk/ US /ˌæk.ɹəˈmæt.ɪk/
adj 4
Definitions
adj
1
Free from color; transmitting light without color-related distortion.
2
Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion.
3
Uncolored; not absorbing color from a fluid.
4
Having only the diatonic notes of the scale; not modified by accidentals.
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