from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Corrected for both chromatic and spherical aberration, as a lens.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Corrected for both chromatic aberration and spherical aberration.
from the GNU version of the Collaborative International Dictionary of English
- adj. Free from chromatic and spherical aberration; -- said esp. of a lens in which rays of three or more colors are brought to the same focus, the degree of achromatism thus obtained being more complete than where two rays only are thus focused, as in the ordinary achromatic objective.
from The Century Dictionary and Cyclopedia
- An epithet descriptive of an improved form of lens devised by Professor Abbe of Jena, constructed of new kinds of glass which allow of a more perfect correction of chromatic and spherical aberration than has hitherto been possible.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. corrected for both chromatic and spherical aberration
Sorry, no etymologies found.