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/ˌθɜː.məʊˈnjuːk.liː.ə/ · adjective
Of, or relating to the fusion of atomic nuclei at high temperatures..
The first thermonuclear reaction was in a star; it was brought about by heat, as the description implies.
I can't believe you gave me, a ten-year-old boy, a thermonuclear device [...]
China detonated her first thermonuclear in June 1967.
Use thermonuclear when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Thermonuclear means Of, or relating to the fusion of atomic nuclei at high temperatures..
Common synonyms include hydrogen bomb, H-bomb, atomic, nuclear.
The opposite depends on the specific sense.
The first thermonuclear reaction was in a star; it was brought about by heat, as the description implies.
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