n.
Pronunciation: i- ' fe-dr ə n, Brit also ' e-f ə -dr ə n
Function: noun
Etymology: New Latin Ephedra
Date: 1889
: a crystalline sympathomimetic alkaloid C 10 H 15 NO extracted from Chinese ephedras or synthesized and usually used in the form of a salt especially as a bronchodilator and decongestant