ephe·​dra | \ i-ˈfe-drə How to pronounce ephedra (audio) , ˈe-fə-drə How to pronounce ephedra (audio) \

Definition of ephedra

1 : any of a genus (Ephedra of the family Ephedraceae) of jointed nearly leafless shrubs of dry or desert regions with the leaves reduced to scales at the nodes
2 : an extract of ma huang containing ephedrine and related alkaloids and used as a dietary supplement

Examples of ephedra in a Sentence

Recent Examples on the Web

Additionally, 34 people died from exposure to dietary supplements during the study period — six from ma huang or ephedra, three from homeopathic agents, and one from yohimbe, CNN reports. Lisa Ryan, The Cut, "Poison Control Centers Saw a 50 Percent Increase in Calls About Dietary Supplements, According to a New Study," 24 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ephedra.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ephedra

circa 1889, in the meaning defined at sense 1

History and Etymology for ephedra

New Latin, genus name, from Latin, equisetum, from Greek, from ephedros sitting upon, from epi- + hedra seat — more at sit

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Time Traveler for ephedra

The first known use of ephedra was circa 1889

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ephed·​ra | \ i-ˈfed-rə How to pronounce ephedra (audio) , ˈef-əd-rə How to pronounce ephedra (audio) \

Medical Definition of ephedra

1a capitalized : a large genus of gymnospermous shrubs (family Gnetaceae) of dry or desert regions with jointed stems and leaves reduced to scales
b : any plant of the genus Ephedra
2 : an extract of any of several Asian ephedras (especially E. sinica) that contains ephedrine and related alkaloids, was formerly used as a dietary supplement especially to promote weight loss and increase energy, and was banned in the U.S. by the FDA in 2004 due to adverse side effects The FDA is also analyzing reports linking a weight-loss and energy supplement, ephedra (ma huang), to heart attacks, strokes, seizures, and fatalities in otherwise healthy adults.Consumer Reports, May 2000

called also ma huang

More from Merriam-Webster on ephedra

Britannica.com: Encyclopedia article about ephedra

Comments on ephedra

What made you want to look up ephedra? Please tell us where you read or heard it (including the quote, if possible).


not constant or steady

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