thimerosal
Americannoun
noun
Etymology
Origin of thimerosal
1945–50; perhaps thi- + mer(cury) + -o- + sal(icylate)
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The committee ultimately voted not to recommend further vaccines containing thimerosal, which was already removed from childhood vaccines in 2001.
From Los Angeles Times ● Apr. 14, 2026
The new panel made its first decision last week, voting to stop recommending a small number of flu vaccines that still contain the preservative thimerosal, something Kennedy wrote a book about in 2015.
From BBC ● Jun. 30, 2025
Manufacturers long ago removed thimerosal from childhood vaccines because of unfounded fears it contained mercury that could accumulate in the brain and unfounded fears about a relationship between mercury and autism.
From Los Angeles Times ● Jun. 29, 2025
He questioned the safety of thimerosal, a common vaccine preservative, advancing the debunked claim it could lead to autism.
From Science Magazine ● Nov. 26, 2024
He wanted to reassure parents who were worried about the effects of a mercury-based preservative called thimerosal, found in some vaccines.
From BBC ● Mar. 1, 2024
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
