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The Collaborative International Dictionary
Ecphractic

Ecphractic \Ec*phrac"tic\, a. [Gr. ?, from ? to open; 'ek 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. [1913 Webster] ||

Wiktionary
ecphractic

a. (context medicine dated English) Serving to dissolve or attenuate viscid matter, and so remove obstructions; deobstruent.