Thermonuclear

Olaf Stapledon wrote sci-fi about humanity being still essentially an ape, as evolution would unfold as a two-billion-year rollercoaster ride. It was written in 1930, before major pollution and thermonuclear weapons. Will humankind really have time to still evolve?

Some futurists envision terraforming Mars and Venus, Earth's neighbouring planets. The process would include means that would be mechanical, biological, biochemical, thermonuclear, etc.

If a thermonuclear bomb hit that base, we'd be vaporized instantaneously.

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.