Definition of Achromatic

1. Adjective. Having no hue. "Neutral colors like black or white"

Definition of Achromatic

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

Definition of Achromatic

1. Adjective. (optics) Free from color; transmitting light without color-related distortion. ¹

2. Adjective. Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion. ¹

3. Adjective. (biology) Uncolored; not absorbing color from a fluid; -- said of tissue ¹

4. Adjective. (music) Having only the diatonic notes of the scale; not modified by accidentals. ¹

5. Adjective. Being achromatic in subject ¹

¹ Source:

Definition of Achromatic

1. [adj]

Medical Definition of Achromatic

1. Literally, colour-free. A lens or prism is said to be achromatic when corrected for two colours. The remaining colour seen in an image formed by such a lens is said to be secondary chromatic aberration. A truly achromatic lens would transmit light without decomposing it spectrally and there would be no colour fringing in the image. A doublet, composed of a positive and negative lens element, can be made achromatic for two colours which much improves the performance for most of the others. (05 Aug 1998)

Lexicographical Neighbors of Achromatic

achoo syndrome
achrestic anaemia
achromatic (current term)
achromatic aplanatic condenser
achromatic apparatus
achromatic color
achromatic colour
achromatic lens
achromatic objective
achromatic threshold

Literary usage of Achromatic

Below you will find example usage of this term as found in modern and/or classical literature:

1. Scientific Papers by John William Strutt Rayleigh (1902)
"But the system of bands is not usually achromatic. Thus, in Fresnel's experiment the centre of symmetry fixes the position of the central achromatic band, ..."

2. The Microscope and Its Revelations by William Benjamin Carpenter (1883)
"Beck's achromatic Condenser. made to move inwards simultaneously, ... achromatic Condensers.—In almost every ease in which an Objective of l-4th inch or any ..."

3. Ferguson's Lectures on Select Subjects in Mechanics, Hydrostatics by James Ferguson (1806)
"achromatic Although a brief account of the achromatic telescope has been given by those who nave written upon optics, since the invention of that instrument ..."

4. How to Work with the Microscope by Lionel Smith Beale (1870)
"achromatic Condenser.—The illumination of some objects examined with high powers is much improved by causing the light to pass through an achromatic ..."

5. On the Improvement of Society by the Diffusion of Knowledge, Or, An by Thomas Dick (1833)
"One of the latest improvements on achromatic object- glasses was made by a foreigner of the name of Guinand, who was originally a cabinet-maker. ..."

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