adj a watery distilled liquor, in distinction from a spirituous liquor.
2. phlegm ·adj sluggishness of temperament; dullness; want of interest; indifference; coldness.
3. phlegm ·adj viscid mucus secreted in abnormal quantity in the respiratory and digestive passages.
4. phlegm ·adj one of the four humors of which the ancients supposed the blood to be composed. ·see humor.