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excipient

noun

ex·​cip·​i·​ent ik-ˈsi-pē-ənt How to pronounce excipient (audio)
: a usually inert substance (such as gum arabic or starch) that forms a vehicle (as for a drug)

Example Sentences

Recent Examples on the Web The lipid excipient surrounds and protects the active ingredient in the vaccine. Laura Cooper, WSJ, 11 Dec. 2021 Between 2015 to 2019, health-care professionals, patients, and manufacturers filed nearly 2,500 reports to the FDA about an adverse reaction to an excipient. Popular Science, 15 Sep. 2020 But their problems are a bit of a medical mystery, because Merck hasn't changed the active ingredient in Levothyrox; what's new are the excipients, ingredients that help stabilize and bulk up the drug. Yves Sciama, Science | AAAS, 27 Sep. 2017 The new version contains mannitol and citric acid—both innocuous and widely used as excipients—instead of lactose. Yves Sciama, Science | AAAS, 27 Sep. 2017

Word History

Etymology

Latin excipient-, excipiens, present participle of excipere to take out, take up — more at except

First Known Use

circa 1753, in the meaning defined above

Time Traveler
The first known use of excipient was circa 1753

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