Meanings
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1
noun
a thin watery discharge of mucus or serum, especially from the eyes or nose
The cold left rheum gathering at the corners of his eyes.
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2
noun
historically, an illness such as catarrh or rheumatism thought to be caused by bodily fluids
The physician attributed the cough to a rheum descending from the head.
Thesaurus
Etymology
From Middle English reume and Anglo-Norman reume, from Late Latin rheuma and Ancient Greek rheuma, 'stream or bodily humor.' It is etymologically related to stream.