a. and sb. rare. [f. QUINTUPLE, after duplicate, quadruplicate.]
A. adj. Five times repeated; consisting of five things, similar parts, etc. Quintuplicate proportion: cf. QUADRUPLICATE a. 1.
1656. trans. Hobbes’ Elem. Philos. (1839), 240. The lengths transmitted shall be to the times in which they are transmitted, in proportion quadruplicate, quintuplicate [etc.].
B. sb. a. A set of five. b. One of a set of five similar things.
1851. Trench, Stud. Words, vi. (1869), 229. We possess in English a great many duplicates, not to speak of triplicates or of such a quintuplicate as that which I adduced just now.
