Definition from Wiktionary, the free dictionary
subduple (not comparable)
- (mathematics) Indicating one part of two; in the ratio of one to two.
- 3:6 is a subduple ratio, while 6:3 is a duple ratio.
- Bishop Wilkins
- As one of these under pulleys abates half of that heaviness of the weight, and causes the power to be in a subduple proportion; so two of them abate half of that which remains, and cause a subquadruple proportion, three a sextuple, four a suboctuple.