(attributive) A technique in which the necessary conditions for a state are identified and then a proof that these conditions cannot be satisfied is produced.

(UK, dated, informal) To be amusing in a slightly challenging way.

A traditional dessert of thickened sweetened cream, served with fruit or preserves.

One who, or that which, ejects or dispossesses. / (mechanics) A jet jump for lifting water or withdrawing air from a space.