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thermonuclear

ther·mo·nu·cle·ar

thermonuclear

 
pronunciation:
thur mo nu kli r
features:
Word Parts
part of speech: adjective
definition 1: of, pertaining to, or resulting from the fusion of the nuclei of a gas at very high temperatures.
definition 2: of or pertaining to weapons based on such fusion, or to warfare using such weapons.