Search the Dictionary

A runt. [Obs.] Spenser.

Of or pertaining to the German physicist Wilhelm Konrad Röntgen, or the rays discovered by him; as, Röntgen apparatus.

Any of the rays produced when cathode rays strike upon surface of a solid (as the wall of the vacuum tube). Röntgen rays are noted for their penetration of many opaque substances, as wood and flesh, their action on photographic plates, and their fluorescent effects. They were called X rays by their discoverer, W. K. Rö…

To render (air or other gas) conducting by the passage of Röntgen rays.

A picture produced by the Röntgen rays; a radiograph.

Very penetrating rays not appreciably deflected by a magnetic or electric field, emitted by radioactive substances. The prevailing view is that they are non-periodic ether pulses differing from Röntgen rays only in being more penetrating.

A picture produced by the Röntgen rays upon a sensitive surface, photographic or fluorescent, especially a picture of opaque objects traversed by the rays.

Direct observation of objects opaque to light by means of some other form of radiant energy, as the Röntgen rays. -- Ra`di*o*scop"ic (#), *scop"ic*al (#), a.

Treatment of disease by means of Röntgen rays or other forms of radioactivity.

To array. [Obs.] Sir T. More.

The Röntgen rays; -- so called by their discoverer because of their enigmatical character.

A vacuum tube suitable for producing Röntgen rays.