radioactivity
Kelime Anlamı :
1. radyoaktiflik.
2. radyoaktivite.
3. ışımetkinlik.
4. ışınetki.
5. ışınetkinlik.
6. RADYOAKTİVİTE: Süratle değişen bir izotopun çekirdeklerinden radyasyonun genel olarak alfa veya beta partiküllerinin çok defa gama ışınlarıyla birlikte kendiliğinden yayılması olayı.
7. radyoaktiflik,radyoaktivite,ışırlık,ışınırlık.
8. i., fiz. radyoaktivite, ışınetki, ışınetkinlik.
Sahne Örnekleri :
Tanımlar :
1.
spontaneous emission of radiation, either directly from unstable atomic nuclei or as a consequence of a nuclear reaction.
2. the radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.
2. the radiation, including alpha particles, nucleons, electrons, and gamma rays, emitted by a radioactive substance.
from The American Heritage® Dictionary of the English Language, 4th Edition
1.
spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
2. the radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.
2. the radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.
from Wiktionary, Creative Commons Attribution/Share-Alike License
1.
a form of instability which is a property of the atomic nuclei of certain isotopes, which causes a spontaneous change in the structure of the nucleus, accompanied by emission of energetic radiation. the radiation emitted is usually sufficient to cause ionization in matter through which it passes, and is therefore called ionizing radiation. the radiation emitted by most radioactive substances is one of three types: alpha rays, beta rays, or gamma rays. some chemical elements have no stable isotopes, and these are referred to as radioactive elements, and the element itself is said to possess radioactivity.
from the GNU version of the Collaborative International Dictionary of English