(aviation, medicine) A situation where the ambient air pressure suddenly drops faster than the air in the lungs can escape, creating a risk of barotrauma to the lung tissue.

Any of a number of explosive materials formulated to be soft and hand malleable.

The explosion of a small explosive charge, either to destroy a suspect package or unexploded ordinance, or to gain access to a locked enclosure that may be booby-trapped.

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