achromatic

[ak-ruh-mat-ik, ey-kruh-]
adjective
1.
Optics.
a.
free from color.
b.
able to emit, transmit, or receive light without separating it into colors.
2.
Biology. (of a cell structure) difficult to stain.
3.
Music. without accidentals or changes in key.

Origin:
1760–70; a-6 + chromatic

achromatically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To achromatic
Collins
World English Dictionary
achromatic (ˌækrəˈmætɪk)
 
adj
1.  without colour
2.  capable of reflecting or refracting light without chromatic aberration
3.  cytology
 a.  not staining with standard dyes
 b.  of or relating to achromatin
4.  music
 a.  involving no sharps or flats
 b.  another word for diatonic
5.  denoting a person who is an achromat
 
achro'matically
 
adv
 
achromatism
 
n
 
achromaticity
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

achromatic ach·ro·mat·ic (āk'rə-māt'ĭk)
adj.

  1. Of or relating to color perceived to have zero saturation and therefore no hue, such as neutral grays, white, or black.

  2. Refracting light without spectral color separation.

  3. Of or relating to cells or tissues difficult to stain with standard dyes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
achromatic   (āk'rə-māt'ĭk)  Pronunciation Key 
Designating color perceived to have zero saturation and therefore no hue, such as neutral grays, white, or black.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences for achromatic
An alternative to achromatic doublets is the use of diffractive optical elements.
Synonyms
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature