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Grey - Wikipedia, the free encyclopedia
Grey (British) or gray (American – see spelling differences) describes the tints and shades ranging from black to white. These, including white and black, are known as achromatic ...
Achromatic lens - Wikipedia, the free encyclopedia
An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths ...
achromatic - definition of achromatic by the Free Online Dictionary ...
ach·ro·mat·ic (k r-m t k) adj. 1. Designating color perceived to have zero saturation and therefore no hue, such as neutral grays, white, or black.
achromatic definition | Dictionary.com
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.
achromatic - Wiktionary
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achromatic - Definition of achromatic at Your Dictionary
adjective. colorless; refracting white light without breaking it up into its component colors; forming visual images whose outline is free from prismatic colors an achromatic lens ...