Definify.com

Webster 1913 Edition

Noun.

(Med.)

A medicine that discusses or disperses morbid humors; a discutient.

Adj.

Having the power to discuss, resolve or disperse tumors or coagulated matter.

Noun.

A medicine that discusses; a discutient.

discussive ‎(plural discussives)

discussive ‎(comparative more discussive, superlative most discussive)

(medicine, dated) Able or tending to discuss, or disperse, tumors or coagulated matter.
(dated) Doubt-dispelling; decisive.
- Hopkins
  A kind of peremptory and discussive voice.