a. [ Formed (in imitation of quadruple) fr. L. sextus sixth: cf. F. sextuple. ] 1. Six times as much; sixfold. [ 1913 Webster ]
2. (Mus.) Divisible by six; having six beats; as, sixtuple measure. [ 1913 Webster ]
a. Having the ratio of one to six; as, a subsextuple proportion. Bp. Wilkins. [ 1913 Webster ]