- Main Entry:
- phlegm

- Pronunciation:
-
\ˈflem\
- Function:
- noun
- Etymology:
- Middle English fleume, from Anglo-French, from Late Latin phlegmat-, phlegma, from Greek, flame, inflammation, phlegm, from phlegein to burn — more at black
- Date:
- 13th century
1: the one of the four humors in early physiology that was considered to be cold and moist and to cause sluggishness2: viscid mucus secreted in abnormal quantity in the respiratory passages3 a: dull or apathetic coldness or indifference b: intrepid coolness or calm fortitude
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phlegmy
\ˈfle-mē\ adjective