[むさいしょく, musaishoku] (n) (See 有彩色) neutral colour; neutral color; achromatic (colour, color) [Add to Longdo]
Result from Foreign Dictionaries (2 entries found)
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Achromatic \Ach`ro*mat"ic\, a. [Gr. 'achrw`matos colorless; 'a
priv. + chrw^ma, chrw`matos, color: cf. F. achromatique.]
1. (Opt.) Free from color; transmitting light without
decomposing it into its primary colors.
[1913 Webster]
2. (Biol.) Uncolored; not absorbing color from a fluid; --
said of tissue.
[1913 Webster]
{Achromatic lens} (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.
{Achromatic prism}. See {Prism}.
{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.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
achromatic
adj 1: having no hue; "neutral colors like black or white" [syn:
{achromatic}, {neutral}] [ant: {chromatic}]
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