Phlegm /(flĕm)/

Phlegm

n.
  1. One of the four humors of which the ancients supposed the blood to be composed. See Humor.
  2. Viscid mucus secreted in abnormal quantity in the respiratory and digestive passages. (Physiol.)
  3. A watery distilled liquor, in distinction from a spirituous liquor. (Old Chem.)
  4. Sluggishness of temperament; dullness; want of interest; indifference; coldness.
    They judge with fury, but they write with phlegm.