Radioactive decay and Thermonuclear reaction

Radioactive decay noun - The spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation.

Thermonuclear reaction and radioactive decay are semantically related. in atomic reaction topic. In some cases you can use "Thermonuclear reaction" instead a noun phrase "Radioactive decay".

Thermonuclear reaction noun - A nuclear fusion reaction taking place at very high temperatures (as in the sun).

Radioactive decay and thermonuclear reaction are semantically related. You can use "Radioactive decay" instead a noun phrase "Thermonuclear reaction".