ouabain

noun
oua·​bain | \ wä-ˈbā-ən How to pronounce ouabain (audio) , ˈwä-ˌbān How to pronounce ouabain (audio) \

Definition of ouabain

: a poisonous glycoside C29H44O12 obtained from several African shrubs or trees (genera Strophanthus and Acokanthera) of the dogbane family and used medically like digitalis and in Africa as an arrow poison

Examples of ouabain in a Sentence

Recent Examples on the Web

But the arrow’s tip has a secret weapon: the deadly poison ouabain. Nathaniel Scharping, Discover Magazine, "Beyond the Condom," 11 May 2018 At such a dose, ouabain can cause twitching, convulsions, high blood pressure, rapid heart rate, and eventually cardiac arrest. Beth Mole, Ars Technica, "Poison arrows inspire new male contraceptive, scientists report," 21 Jan. 2018 The ouabain derivative didn’t have any toxic effects, and the rat produced normal levels of sperm. Beth Mole, Ars Technica, "Poison arrows inspire new male contraceptive, scientists report," 21 Jan. 2018 But ouabain also affects another type of transporter subunit called α4, which is found only in sperm cells. Smithsonian, "Heart-Stopping Arrow Poison Could Be the Key to Male Birth Control," 31 Jan. 2018 Our results are promising because our candidate molecule, unlike ouabain, is nontoxic in rats. Smithsonian, "Heart-Stopping Arrow Poison Could Be the Key to Male Birth Control," 31 Jan. 2018

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

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First Known Use of ouabain

1888, in the meaning defined above

History and Etymology for ouabain

International Scientific Vocabulary, from French ouabaïo, an African tree, from Somali waabayyo arrow poison

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Time Traveler for ouabain

The first known use of ouabain was in 1888

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More Definitions for ouabain

ouabain

noun
oua·​bain | \ wä-ˈbā-ən How to pronounce ouabain (audio) , ˈwä-ˌbān How to pronounce ouabain (audio) \

Medical Definition of ouabain

: a poisonous glycoside C29H44O12 obtained from several African shrubs or trees of the dogbane family and used medically like digitalis and in Africa as an arrow poison

More from Merriam-Webster on ouabain

Rhyming Dictionary: Words that rhyme with ouabain

Britannica.com: Encyclopedia article about ouabain

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