An Etymological Dictionary of Astronomy and Astrophysics
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1) (n.) A chemical or compound that causes a sudden, almost instantaneous release of pressure, gas, heat, and light when subjected to sudden shock, pressure, high temperature, or applied potential.
2) (adj.) Pertaining to or of the nature of an → explosion.

From explos(ion), → explosion + → -ive.

Oskaftâk, from oskaft-, stem of oskaftan, → explode, + -âk noun suffix.

The explosive processes that are believed to occur in supernovae. Explosive carbon burning occurs at a temperature of about 2 × 10⁹ degrees and produces the nuclei from neon to silicon. Explosive oxygen burning occurs near 4 × 10⁹ degrees and produces nuclei between silicon and calcium in atomic weight.At higher temperatures, still heavier nuclei are produced.

→ explosive; → nucleosynthesis.