adjective. Designating color perceived to have zero saturation and therefore no hue, such as neutral grays, white, or black.

adjective. Refracting light without spectral color separation.

adjective. Difficult to stain with standard dyes. Used in reference to cells or tissues.

adjective. Having only the diatonic tones of the scale.

Destitute of color; free from coloration; transmitting light without decomposing it into its constituent colors: as, an achromatic lens or telescope.

In biology: Colorless; hyaline.

adjective. Free from color; transmitting light without decomposing it into its primary colors.

adjective. Uncolored; not absorbing color from a fluid; -- said of tissue.

adjective. 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.

adjective. See Prism.

adjective. 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.

adjective. undefined

adjective. Free from color; transmitting light without color-related distortion.

adjective. Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion.

adjective. Uncolored; not absorbing color from a fluid; -- said of tissue

adjective. Having only the diatonic notes of the scale; not modified by accidentals.

adjective. Being achromatic in subject

adjective. having no hue

"This might not necessarily be a real appearance for it is conceivable that such traces of colour might be due to the telescopes employed not having been truly achromatic, that is, not sufficiently corrected for colour; but making every allowance for this possible source of mistake there yet remains proof that the colour which has often been seen has been real."

achromatic * mirror * objective  achromatic condenser  achromatic figure  achromatic lens  achromatic mass  

argent  ash-gray  ash-grey  ashy  black-gray  

achromatic lens  achromatic prism  achromaticity  achromatism  chromatic  

11-foot  18-inch  24-inch  26-inch  3-1/2-inch  

uncolored