Definitions from Wiktionary ( )

▸ noun:  (historical) One of the four humors making up the body in ancient and mediaeval medicine; said to be cold and moist, and often identified with mucus.
▸ noun:  Viscid mucus produced by the body, later especially mucus expelled from the bronchial passages by coughing.
▸ noun:  (historical, chemistry, alchemy) A watery distillation, especially one obtained from plant matter; an aqueous solution.
▸ noun:  Calmness of temperament, composure; also seen negatively, sluggishness, indifference.

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