achromatic
1. capable of reflecting or refracting light without chromatic aberration
2. Cytologya. not staining with standard dyes
b. of or relating to achromatin
3. Musica. involving no sharps or flats
4. denoting a person who is an achromat
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Achromatic
Having no color; a neutral such as black and white.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
achromatic
[¦a·krə¦mad·ik] (optics)
Capable of transmitting light without decomposing it into its constituent colors.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
achromatic
Said of architecture that is without color, for example, the white buildings of Greek Revival.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.