View synonyms for achromatic

achromatic

[ ak-ruh-mat-ik, ey-kruh- ]

Phonetic (Standard)IPA

adjective

Optics.
1. free from color.
2. able to emit, transmit, or receive light without separating it into colors.
Biology. (of a cell structure) difficult to stain.
Music. without accidentals or changes in key.

achromatic

/ əˈkrəʊməˌtɪzəm; ˌækrəˈmætɪk; əˌkrəʊməˈtɪsɪtɪ /

achromatic

/ ăk′rə-măt′ĭk /

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

First recorded in 1760–70; a- ⁶ + chromatic

The construction of achromatic telescopes depends upon this principle.

The achromatic lens consists of a double convex lens of crown glass combined with a plano-concave lens of flint glass.

Achromatic lenses are used in all high-grade optical instruments such as telescopes and microscopes.

The colored images that are sometimes seen in cheap opera glasses show the result of not using achromatic lenses.

The camera is furnished with either meniscus achromatic or rapid rectilinear lens.

April 19, 2024tortuous

[tawr-choo-uhs ]

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