A chemical explosive capable of detonation rather than solely of deflagration; a chemical explosive capable of reacting at a sufficiently-fast rate to produce a shock wave which propagates the reaction throughout the explosive mass; a chemical explosive capable of producing an explosion even when unconfined.

(firefighting) An explosion of flue gases accumulated inside a burning building.

(physics) the effect of a molecule moving at high speed striking a solid; binding electrons being torn off, and the resulting charged constituents separating due to Coulomb repulsion

Designed and constructed to withstand or minimize damage from an internal or external explosion.

plural of smoke explosion

(chemistry) Any of several highly unstable explosives that are the silicon analogues of existing carbon ones.

(logic) The principle or axiom of classical logic and some other logical systems stating that if a contradiction or a false proposition is proven to be true, then it proves that everything is true. In symbols: ⊥→P

(evolutionary biology) The relatively rapid appearance, during the Cambrian Period around 541 million years ago, of most major animal phyla, as demonstrated in the fossil record.

(by extension) The rapid appearance of anything.

A belt packed with explosives and armed with a detonator, worn by a suicide bomber.