What does "digestive" mean?

Digestive: That which aids digestion, as a food or medicine. Chaucer. That digestive [a cigar] had become to me as necessary as the meal itself. Blackw. Mag.

Additional senses

  1. 2.(Med.) (a) A substance which, when applied to a wound or ulcer, promotes suppuration. Dunglison. (b) A tonic. [R.]

Sources