strontium 90
noun
: a heavy radioactive isotope of strontium of mass number 90 that has a half-life of 29 years, that is present in nuclear waste and fallout, and that is hazardous because like calcium it can be assimilated in biological processes and deposited in the bones of human beings and animals
Examples of strontium 90 in a Sentence
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Levels of strontium 90 were found to be as much as 50 times greater than children born in 1950.
—
Worth Sparkman, Axios, 12 July 2024
The cows in pastures were eating grass that was [contaminated] by strontium 90.
—Michael Schulman, The New Yorker, 17 June 2021
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Worth Sparkman, Axios, 12 July 2024
The cows in pastures were eating grass that was [contaminated] by strontium 90.
—Michael Schulman, The New Yorker, 17 June 2021
Cite this Entry
“Strontium 90.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/strontium%2090. Accessed 25 Jul. 2025.
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