Achromatic Definition

ăkrə-mătĭk, ākrə-
Colorless; specif., designating or of the group of colors comprising black, white, and gray.
Webster's New World
Refracting white light without breaking it up into its component colors.
Webster's New World
Forming visual images whose outline is free from prismatic colors.
An achromatic lens.
Webster's New World
Having only the diatonic tones of the scale.
American Heritage
Staining poorly with the usual stains.
Webster's New World

Origin of Achromatic

  • Ancient Greek ἀχρωμάτιστος (akhrōmatistos, “uncolored”), from ἀ- (a-, “alpha privative”) + χρῶμα (khrōma, “color”); compare French achromatique

    From Wiktionary

  • From Greek akhrōmatos a- without a–1 khrōma khrōmat- color

    From American Heritage Dictionary of the English Language, 5th Edition

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