a. Obs. rare1. [f. L. sulphureus SULPHUREOUS + -AL.] Sulphurous. So † Sulphurean,Sulphureate adjs.

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a. 1604.  Hanmer, Chron. Irel. (1633), 65. They … sent such a number of damned soules into the sulphureall pits, [etc.].

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1607.  R. C[arew], trans. Estienne’s World of Wonders, A 2. Those tartarean woods, and sulphurean lakes.

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c. 1620.  T. Robinson, Mary Magd., 758. Though vnto ye poyson’d lake shee went, Vncapable shee was of ye sulphurean sent.

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1632.  Lithgow, Trav., I. 21. The Sulphurean mountaine. Ibid., IX. 391. A sulphureat Riuer.

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