achromatic, neutral
(adjective) having no hue; “neutral colors like black or white”
Source: WordNet® 3.1
achromatic (comparative more achromatic, superlative most achromatic)
(optics) Free from color; transmitting light without color-related distortion.
Synonym: Thesaurus:achromatic
Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion.
(biology) Uncolored; not absorbing color from a fluid; -- said of tissue
(music) Having only the diatonic notes of the scale; not modified by accidentals.
Being achromatic in subject
Source: Wiktionary
Ach`ro*mat"ic, a. Etym: [Gr. achromatique.]
1. (Opt.)
Definition: Free from color; transmitting light without decomposing it into its primary colors.
2. (Biol.)
Definition: Uncolored; not absorbing color from a fluid; -- said of tissue. 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
11 April 2025
(noun) cheap paper made from wood pulp and used for printing newspapers; “they used bales of newspaper every day”
Contrary to popular belief, coffee beans are not technically beans. They are referred to as such because of their resemblance to legumes. A coffee bean is a seed of the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit, often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit.
