Source : Webster's Revised Unabridged Dictionary (1913)

Convulsionary \Con*vul"sion*a*ry\, a. [Cf. F. convulsionnaire.]
   Pertaining to convulsion; convulsive. ``Convulsionary
   struggles.'' --Sir W. Scott.

Convulsionary \Con*vul"sion*a*ry\, n.
   A convulsionist.