[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.

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c. 1590.  Greene, Fr. Bacon, ix. 31. The quadruplicity Of elemental essence.

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1593.  Norden, Spec. Brit., M’sex, I. 44. King Canutus the Dane,… in regard of his quadruplicitie of kingdomes, esteemed himselfe more then a man mortall.

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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.

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1825.  Coleridge, Aids Refl., App. C. (1858), I. 395. The universal quadruplicity, or four elemental forms of power.

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1890.  J. H. Stirling, Gifford Lect., iii. 41. The origin of the term [final causes] lies in the Aristotelian quadruplicity of causes as such.

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