radioactivity

Значение (Английский)

1. (uncountable, usually) Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
2. (uncountable, usually) The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.

Синонимы

radiation

light

radioactive decay

ray

radio-activity

Переводы

radioactivité

Radioaktivität

radioattività

radioactividad

radiactividad

ραδιενέργεια

radioactivitat

radioatividade

radioactividade

radioactiviteit

إشعاعية

radyoaktivite

ışınırlık

Этимология (Английский)

From radioactive + -ity or radio- + activity.