achromatic : Idioms & Phrases
Index
achromatic color
-
noun a color lacking hue; white or grey or black
achromatic color.
WordNet
achromatic colour
-
noun a color lacking hue; white or grey or black
achromatic color.
WordNet
Achromatic lens
-
noun a compound lens system that forms an image free from chromatic aberration
WordNet
(Opt.) , a lens composed usually of two separate lenses, a convex and concave, of substances having different refractive and dispersive powers, as crown and flint glass, with the curvatures so adjusted that the chromatic aberration produced by the one is corrected by other, and light emerges from the compound lens undecomposed.
Webster 1913
Achromatic prism
- . See
Prism .
Webster 1913
Achromatic telescope , or microscope
- one in which the chromatic aberration is corrected, usually by means of a compound or achromatic object glass, and which gives images free from extraneous color.
Webster 1913
achromatic vision
-
noun vision using the rods