Found 3 items, similar to gamma ray.
English → Indonesian (quick) Definition: gamma ray sinar gamma
English → English (WordNet) Definition: gamma ray gamma ray n : electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength [syn: gamma radiation ]
English → English (gcide) Definition: Gamma ray Gamma ray \Gam"ma ray\ n. (Physics) A very penetrating electromagnetic ray not appreciably deflected by a magnetic or electric field, emitted by radioactive substances. Gamma rays are photons of electromagnetic radiation having a wavelength shorter than that of X-rays, (i. e. shorter than 0.1 nanometer) and are correspondingly more penetrating than X-rays. In addition to being given off in certain types of radioactive decay, they may be found in cosmic radiation, though they are largely absorbed by the earth's atmosphere. Gamma-ray detectors orbited above the atmosphere have found bursts of gamma radiation, in some cases associated with visually observed supernova explosions, but in most cases from unidentified sources. [Webster 1913 Suppl. +PJC]