sb. pl. Cl. Antiq. [L. ‘baths’: see THERM1.] One of the public bathing establishments of the ancient Romans and Greeks; also, hot springs (? obs.).

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1600.  Holland, Livy, Summ. Mar., IV. xxv. 1382. Those places where they built these baines and hote houses, they call Thermæ.

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1695.  Woodward, Nat. Hist. Earth, III. i. 144. Thermæ, Natural Baths, or Hot-Springs.

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1832.  Gell, Pompeiana, I. iv. 47. The baths or thermae.

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1908.  Westm. Gaz., 31 Dec., 4/1. Unlike the thermæ of the élégants of Pompeii … the R.A.C. baths will have ample window space.

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