Source : Webster's Revised Unabridged Dictionary (1913)

Tisic \Tis"ic\, Tisical \Tis"ic*al\, a. [For phthisic,
   phthisical.]
   Consumptive, phthisical.

Tisic \Tis"ic\, n.
   Consumption; phthisis. See {Phthisis}.