Thermonuclear

Adjective

 * Of, or relating to the fusion of atomic nuclei at high temperatures
 * Of, or relating to the use of atomic weapons based on such fusion, especially as distinguished from those based on fission

Translations

 * French:
 * Italian:
 * Romanian: termonuclear
 * Russian: термоядерный (termojádernyj)
 * Swedish: termonukleär

Quotations

 * The first thermonuclear reaction was in a star; it was brought about by heat, as the description implies..