\Dis*cuss"ive\, a. [Cf. F. discussif.]
1. (Med.) Able or tending to discuss or disperse tumors or
   coagulated matter.
2. Doubt-dispelling; decisive. [R.]
         A kind of peremptory and discussive voice.
                                               --Hopkins.

\Dis*cuss"ive\, n. (Med.)
A medicine that discusses or disperses morbid humors; a
discutient.