- opaque to X-rays
- rare <phys> ■ röntgensichtbar; strahlendicht; röntgenkontrastgebend; röntgenstrahlenundurchlässig
English-german technical dictionary. 2013.
opaque to X-rays
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opaque meal — a test meal containing a substance opaque to x rays, so that the outline of the stomach and the intestinal tract can be determined … Medical dictionary
Opaque — O*paque , a. [F., fr. L. opacus. Cf. {Opacous}.] [1913 Webster] 1. Impervious to the rays of light; not transparent; as, an opaque substance. [1913 Webster] 2. Obscure; not clear; unintelligible. [Colloq.] [1913 Webster] … The Collaborative International Dictionary of English
opaque — Impervious to light; not translucent or only slightly so. Cf.:radiopaque. [Fr. fr. L. opacus, shady] * * * opaque ō pāk adj exhibiting opacity: not pervious to radiant energy opaque·ness n * * * (o pākґ) [L. opacus dark] impervious to light… … Medical dictionary
Bundle of rays — Ray Ray, n. [OF. rai, F. rais, fr. L. radius a beam or ray, staff, rod, spoke of a wheel. Cf. {Radius}.] 1. One of a number of lines or parts diverging from a common point or center, like the radii of a circle; as, a star of six rays. [1913… … The Collaborative International Dictionary of English
Pencil of rays — Ray Ray, n. [OF. rai, F. rais, fr. L. radius a beam or ray, staff, rod, spoke of a wheel. Cf. {Radius}.] 1. One of a number of lines or parts diverging from a common point or center, like the radii of a circle; as, a star of six rays. [1913… … The Collaborative International Dictionary of English
Roentgen rays — X ray X ray, X ray X ray([e^]ks r[=a] ), n. [so called by its discoverer because of its enigmatical character, x being an algebraic symbol for an unknown quantity.] (Physics) originally, any of the rays produced when cathode rays strike upon… … The Collaborative International Dictionary of English
X rays — X ray X ray, X ray X ray([e^]ks r[=a] ), n. [so called by its discoverer because of its enigmatical character, x being an algebraic symbol for an unknown quantity.] (Physics) originally, any of the rays produced when cathode rays strike upon… … The Collaborative International Dictionary of English
X rays — Rontgen ray R[ o]ntgen ray, Roentgen ray Roentgen ray [see {R[ o]ntgen}.] (Physics) An {X ray}; originally, the term was applied to any of the rays produced when cathode rays strike upon surface of a solid (as the wall of the vacuum tube), but… … The Collaborative International Dictionary of English
Health threat from cosmic rays — The health threat from cosmic rays is the danger posed by cosmic rays generated by the Sun and other stars to astronauts on interplanetary missions.Cosmic rays consists of high energy protons and other nuclei.They are one of the most important… … Wikipedia
RÖNTGEN RAYS — described by Dr. Knott as rays of light that pass with ease through many substances that are optically opaque, but are absorbed by others. For example, he says, the bony structures of the body are much less transparent than the fleshy parts;… … The Nuttall Encyclopaedia
radio-opaque — adjective not transparent to X rays or other forms of radiation barium sulfate is radiopaque • Syn: ↑radiopaque • Ant: ↑radiolucent (for: ↑radiopaque) • Derivationally related forms: ↑ … Useful english dictionary
