(music) A musical note equal to two or three breves, i.e. four or six whole notes; a longa.

present participle of quadruple bluff

simple past tense and past participle of quadruple bluff

plural of quadruple bluff

plural of quadruple thread

plural of quadruple scull

(mathematics) A set of three positive integers a, b, c, and d, for which a²+b²+c²=d²

plural of Pythagorean quadruple

(nautical) Having four masts.

Four sporting events, one after the other, at a single venue. / Four sporting events, one after the other, broadcast on the same television channel.