Similar term(s): radioactive disintegration.
The decrease in the [radiation intensity] of any radioactive material with the
passage of time due to the spontaneous emission of radiation from an atomic
Source: University of Harvard Environmental Health & Safety
The end product – called decay product, daughter product,
daughter isotope or daughter nuclide – is a less energetic, more stable nucleus.
Each decay process has a definite half-life.
Radiation - Radioactivity
Español: Desintegración radiactiva
Français: Désintégration radioactive