thi·​mer·​o·​sal | \ thī-ˈmer-ə-ˌsal \

Definition of thimerosal

: a crystalline organic mercurial antiseptic C9H9HgNaO2S used especially for its antifungal and bacteriostatic properties

Examples of thimerosal in a Sentence

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Studies have shown no evidence of harm caused by the low doses of thimerosal in vaccines. Julie Washington,, "Cold or flu? Here's how to tell, plus your flu vaccine questions answered," 23 Jan. 2018 The flu vaccine does contain a preservative called thimerosal, which breaks down to ethylmercury once inside the body. Grace Donnelly, Fortune, "The History of the Flu Shot and Some Common Misconceptions," 19 Jan. 2018 While that may seem far-fetched, science has equally disproven the accusations of autism-causation and mercury poisoning through thimerosal. Madeleine Deliee, Woman's Day, "Could Anti-Vaxxers Turn Mumps Into the New Polio?," 13 Mar. 2017 Some have tried linking mercury – specifically thimerosal – with autism. Tony Hicks, The Mercury News, "Is Robert De Niro an anti-vaxxer?," 16 Feb. 2017 Mr. Kennedy in the past has raised doubts about thimerosal, a mercury-containing... Alex Berezow And Hank Campbell, WSJ, "Ignore Anti-Vaccine Hysteria, Mr. Trump," 10 Jan. 2017 Redwood started her mailing list on thimerosal with two posts in January 2000; Sara Solovitch, WIRED, "The Citizen Scientists," 1 Sep. 2001 More importantly, thimerosal doesn't stay in the body long enough to accumulate. Avery Thompson, Popular Mechanics, "Vaccines Are Safe and There Is Plenty of Proof," 17 Feb. 2017 The C.D.C. notes that there have been nine C.D.C.-funded or conducted studies since 2003 on thimerosal-containing vaccines, all of which found no link to autism spectrum disorder. Abigail Tracy, The Hive, "Donald Trump Taps Anti-vaccine Activist to Investigate Vaccine Science," 10 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thimerosal.' 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 thimerosal

1949, in the meaning defined above

History and Etymology for thimerosal

probably from thi- + mercury + -o- + salicylate

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The first known use of thimerosal was in 1949

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thi·​mer·​o·​sal | \ thī-ˈmer-ə-ˌsal \

Medical Definition of thimerosal

: a crystalline organic mercurial antiseptic C9H9HgNaO2S used especially for its antifungal and bacteriostatic properties — see merthiolate

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