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; -- said of tissue. [1913 Webster]

{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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • 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 — 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… …   New Collegiate 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

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”