Quin″tu‐ple (?), a. [L. quintus fifth: cf. F. quintuple, L. quintuplex. Cf. Quadruple.] Multiplied by five; increased to five times the amount; fivefold.
Quintuple time(Mus.), a time having five beats in a measure. It is seldom used.
Webster's Dictionary 1913
Quin″tu‐ple (?), a. [L. quintus fifth: cf. F. quintuple, L. quintuplex. Cf. Quadruple.] Multiplied by five; increased to five times the amount; fivefold.
Quintuple time(Mus.), a time having five beats in a measure. It is seldom used.