achromaticallyadv.
/ˌakrə(ʊ)ˈmatᵻkli/, /ˌeɪkrə(ʊ)ˈmatᵻkli/, U.S. /ˌækrəˈmædək(ə)li/, /ˌeɪkrəˈmædək(ə)li/ Science.
In an achromatic manner; so as to be achromatic (in any sense).
ΘΚΠ
the world > matter > colour > state or mode of having colour > absence of colour > [adverb]
achromatically1840
1840 G. Crabbe Outl. Syst. Nat. Theol. 163 Were not the eye composed of several substances transparent, and, at the same time, achromatically refractive, [etc.].
1881 Edinb. Rev. 540 The eye does not deal achromatically with the coloured constituents of light.
1900 S. P. Thompson tr. O. Lummer Contrib. Photogr. Optics vii. 41 These two-lens combinations corrected in this sense achromatically and spherically we shall henceforth call achromats.
1951 E. S. Schneidman et al. Thematic Test Anal. 17 Background pictures,..printed achromatically on thin cardboard.
2001 Chem. Physics Lett. 338 256/2 The resulting four beams were imaged achromatically onto the sample.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).
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adv.1840