The haulm of certain Ephedra species (Ephedra nevadensis, Ephedra viridis) has traditionally. been used by North American Indians to prepare daily infusions and medicinal teas (USDA-NRCS, 2006a; USDA-NRCS, 2006b). Food supplements containing ephedra alkaloids are used mostly for weight loss and to enhance.
Definition of emphasize for English Language Learners. : to give special attention to (something) : to place emphasis on (something)
: to give special attention to (something) : to place emphasis on (something) 1  Their father always emphasized [=stressed] the importance of discipline. [=always said that discipline was important] 2  He wanted to emphasize (to us) that he hadn't meant to offend anyone.