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Synonyms

achromic

American  
[ey-kroh-mik] / eɪˈkroʊ mɪk /
Or achromous

adjective

  1. colorless; without coloring matter.


achromic British  
/ əˈkrəʊmɪk /

adjective

  1. colourless

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of achromic

First recorded in 1755–65; a- 6 + chromic