(*) A weapon in which very high temperatures are used to bring about the fusion of light nuclei such as those of hydrogen isotopes (e.g., deuterium and tritium) with the accompanying release of energy. The high temperatures required are obtained by means of fission.
THERMONUCLEAR WEAPON
Meaning of THERMONUCLEAR WEAPON in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012