Question

thermonuclear In the 1950s and '60s, anxious American families built thousands of underground “fallout shelters” to protect themselves from the radiation of a thermonuclear blast. ˌθərmoʊˈnukliər

Accepted Answer

Of or relating to the changes in the nucleus of atoms with low atomic weight, such as hydrogen, that require a very high temperature to begin. Nuclear is the adjective for nucleus, the main central part of an atom. The original nuclear explosives, detonated in 1945, were so-called fission bombs, since they relied on the fission, or splitting, of the nuclei of uranium atoms. But an even greater source of destructive power lay in nuclear fusion, the forcing together of atomic nuclei. The light and heat given off by stars such as the sun come from a sustained fusion—or thermonuclear—reaction deep within it. On earth, such thermonuclear reactions were used to develop the hydrogen bomb, a bomb based on a fusion reaction that merged hydrogen atoms to become helium atoms. The thermonuclear era, which began in 1952, produced bombs hundreds of times more powerful than those exploded at the end of World War II. Why the thermo- in thermonuclear? Because great heat is required to trigger the fusion process, and the trigger used is actually a fission bomb

word	thermonuclear
definition	Of or relating to the changes in the nucleus of atoms with low atomic weight, such as hydrogen, that require a very high temperature to begin.
eg_sentence	In the 1950s and '60s, anxious American families built thousands of underground “fallout shelters” to protect themselves from the radiation of a thermonuclear blast.
explanation	Nuclear is the adjective for nucleus, the main central part of an atom. The original nuclear explosives, detonated in 1945, were so-called fission bombs, since they relied on the fission, or splitting, of the nuclei of uranium atoms. But an even greater source of destructive power lay in nuclear fusion, the forcing together of atomic nuclei. The light and heat given off by stars such as the sun come from a sustained fusion—or thermonuclear—reaction deep within it. On earth, such thermonuclear reactions were used to develop the hydrogen bomb, a bomb based on a fusion reaction that merged hydrogen atoms to become helium atoms. The thermonuclear era, which began in 1952, produced bombs hundreds of times more powerful than those exploded at the end of World War II. Why the thermo- in thermonuclear? Because great heat is required to trigger the fusion process, and the trigger used is actually a fission bomb
IPA	ˌθərmoʊˈnukliər

Thermonuclear Nuclear Atoms Atomic Fission Heat Hydrogen Bomb