adjective Date: 1766 1. refracting light without dispersing it into its constituent colors ; giving images practically free from extraneous colors <
an achromatic telescope
2. not readily colored by the usual staining agents 3. possessing no hue ; being or involving black, gray, or white ; neutral <
achromatic visual sensations
4. being without accidentals or modulation ; diatonicachromatically adverbachromatism nounachromatize transitive verb

New Collegiate Dictionary. 2001.

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  • Achromatic — Ach ro*mat ic, a. [Gr. ? colorless; a priv. + ?, ?, 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;… …   The Collaborative International Dictionary of English

  • achromatic — [ak΄rə mat′ik, ā΄krəmat′ik] adj. [Gr achrōmatos < a , without + chrōma, color (see CHROME) + IC] 1. colorless 2. refracting white light without breaking it up into its component colors 3. forming visual images whose outline is free from… …   English World dictionary

  • achromatic — achromatic. См. ахроматический. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • achromatic — (adj.) 1766, from Gk. akhromatos colorless, from a , privative prefix (see A (Cf. a ) (3)), + khromat , comb. form of khroma color (see CHROMA (Cf. chroma)) + IC (Cf. ic) …   Etymology dictionary

  • ACHROMATIC US — (от греч. а отриц. част. и chroma цвет), кровепаразиты летучих мышей Vesperugo. В наст, время причисляются к роду Babesia (см.). В. vesperugi nis(cHH. Achromaticus vesperuginis)Dionisi, 1899, паразитирует у летучих мышей Vesperugo; переносчиком… …   Большая медицинская энциклопедия

  • achromatic — *colorless, uncolored Analogous words: *neutral, negative Antonyms: chromatic Contrasted words: colored, tinted, tinged (see corresponding nouns at COLOR) …   New Dictionary of Synonyms

  • achromatic — ► ADJECTIVE 1) transmitting light without separating it into colours. 2) without colour …   English terms dictionary

  • achromatic — adjective /eɪˈkɹəʊ.mæt.ɪk/ a) Free from color; transmitting light without color related distortion. The lecture was achromatic, the speaker used politics to suppress the weight of his/her subject. b) Containing components such as achromatic… …   Wiktionary

  • achromatic — 1. Colorless. 2. Not staining readily. 3. Refracting light without chromatic aberration. [G. a priv. + chroma, color] * * * ach·ro·mat·ic .ak rə mat ik adj 1) refracting light without dispersing it into its constituent colors: giving images… …   Medical dictionary

  • achromatic — adj. Optics 1 that transmitts light without separating it into constituent colours (achromatic lens). 2 without colour (achromatic fringe). Derivatives: achromatically adv. achromaticity n. achromatism n. Etymology: F achromatique f. Gk… …   Useful english dictionary

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