Simple Definition of catarrh
medical : a condition in which the nose and air passages become filled with mucus
Origin and Etymology of catarrh
Middle English catarre, from Middle French or Late Latin; Middle French catarrhe, from Late Latin catarrhus, from Greek katarrhous, from katarrhein to flow down, from kata- + rhein to flow — more at stream
First Known Use: 15th century
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