achromatic colour

Definitions

  • WordNet 3.6
    • n achromatic colour a color lacking hue; white or grey or black
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Usage

In literature:

One image is quite achromatic, the other shows a little colour.
"Inquiries into Human Faculty and Its Development" by Francis Galton
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In science:

N∗ is the number of stars monitored for a duration Tobs , and ǫ(tE ) is the overall detection efficiency for events with timescale tE .2 Finally, when blending is negligible or is due to a star with the same colour as that being microlensed, microlensing is achromatic.
The Galactic Halo from Microlensing
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