[ad. L. quadruplicitās, n. of quality f. quadruplex: see QUADRUPLEX and -ITY.] Fourfold nature; the condition of being fourfold, or of forming a set of four.
c. 1590. Greene, Fr. Bacon, ix. 31. The quadruplicity Of elemental essence.
1593. Norden, Spec. Brit., Msex, I. 44. King Canutus the Dane, in regard of his quadruplicitie of kingdomes, esteemed himselfe more then a man mortall.
1664. Power, Exp. Philos., I. 37. Doctor Brown hath ranked this conceit of the Eyes of a Snail (and especially their quadruplicity) amongst the Vulgar errours of the multitutde.
1825. Coleridge, Aids Refl., App. C. (1858), I. 395. The universal quadruplicity, or four elemental forms of power.
1890. J. H. Stirling, Gifford Lect., iii. 41. The origin of the term [final causes] lies in the Aristotelian quadruplicity of causes as such.