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?1771 F. B. Lee tr. S. A. D. Tissot Ess. Disorders People of Fashion viii. 77 The fever, and the new lodgement of a part of the refluxing humours carried to different parts, cause the most alarming symptoms.

1772 R. Griffith Something New I. 158 The sea must necessarily need a course of fluxing and refluxing, in order to preserve its health.

1840 J. Orange Hist. & Antiq. Nottingham I. ii. iv. 18 The perpetually choking up of the mouth of that river, by the gravel taken down by each refluxing tide, has already rendered it impossible for more than two vessels to enter the Mersey abreast.

1915 Science 31 Dec. 955/2 This heating requires about an hour and is followed by three hours refluxing.

1972 Amer. Jrnl. Nursing 72 1881/3 Fail-safe check valve on a closed-wound suction unit..prevents refluxing of fluids back to the wound.

1975 L. F. Fieser & M. A. Fieser Reagents for Org. Synthesis V. 381 Raney nickel which had been deactivated by treatment with refluxing ethanol.

2007 J. B. Ledgard Preparatory Man. Explosives (ed. 3) viii. 198 After 8 hours of refluxing, quickly add 300 grams of paraformaldehyde.