Source : Webster's Revised Unabridged Dictionary (1913)

Ecphractic \Ec*phrac"tic\, a. [Gr. ?, from ? to open; ? out + ?
   to block up: cf. F. ecphractique.] (Med.)
   Serving to dissolve or attenuate viscid matter, and so to
   remove obstructions; deobstruent. -- n. An ecphractic
   medicine. --Harvey.