Med. [mod.L., a. Gr. κάθαρσις cleansing, purging, f. καθαίρειν to cleanse, purge, f. καθαρός clean.] Purgation of the excrements of the body; esp. evacuation of the bowels.

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1803.  Med. Jrnl., IX. 418. Causing vomiting, catharsis, or diabetes.

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1875.  H. C. Wood, Therap. (1879), 449. The production of catharsis is the surest mode of relief in general dropsy.

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