How to Use cesium in a Sentence

cesium

noun
  • Time is defined in terms of cesium atoms, so the best clocks in the world are cesium clocks.
    — Clara Moskowitz, Scientific American, 28 Jan. 2022
  • The second is affixed to the motion of the atoms of the element cesium.
    — Brian Resnick, Vox, 15 Nov. 2018
  • Their cesium levels will teach us about their migration patterns.
    — Daniel Madigan, Discover Magazine, 30 July 2012
  • The gamma rays emitted by cesium and cobalt can kill germs multiplying in your meat and make your apples last longer.
    — Sarah Scoles, Scientific American, 11 Mar. 2022
  • In some samples, the cesium from weapons alone was enough to render the wild boars unsafe for human consumption.
    — Tim Newcomb, Popular Mechanics, 1 Sep. 2023
  • Around the same time, the first accurate atomic clocks were being developed that used cesium.
    — Jay Bennett, Popular Mechanics, 24 Mar. 2017
  • That includes elements like radioactive cesium, which have been known to make people sick to the point of death across the globe.
    — David Grossman, Popular Mechanics, 15 Apr. 2019
  • Lasers are used to slow and cool the atoms to near absolute zero, and then more lasers are used to elevate the ball of cesium up the chamber.
    — Jay Bennett, Popular Mechanics, 24 Mar. 2017
  • Once the leaves are saturated with cesium, they can be easily replaced.
    — Aman Tripathi, Interesting Engineering, 24 Sep. 2025
  • The cesium would have to be separately glassified or disposed of some other way.
    — Ralph Vartabedian, latimes.com, 4 June 2019
  • This enables optical atomic clocks to measure time far more precisely than cesium clocks.
    — New York Times, 25 Apr. 2022
  • And make no mistake, even cesium atomic clocks are stunningly accurate.
    — IEEE Spectrum, 24 June 2021
  • The actual creation of such a clock is still a work in progress, and the cesium atom remains today the ultimate time keeper.
    — Nathaniel Scharping, Discover Magazine, 18 Jan. 2018
  • Those who fear they may have been exposed to elevated levels of cesium should contact their medical provider.
    — Mary Walrath-Holdridge, USA Today, 23 Dec. 2025
  • Those who fear they may have been exposed to elevated levels of cesium should contact their medical provider.
    — Mary Walrath-Holdridge, USA Today, 25 Sep. 2025
  • Those who fear they may have been exposed to elevated levels of cesium should contact their medical provider.
    — Mary Walrath-Holdridge, The Enquirer, 21 Aug. 2025
  • Those who fear they may have been exposed to elevated levels of cesium should contact their medical provider.
    — Mary Walrath-Holdridge, USA Today, 20 Aug. 2025
  • Thanks to their new data, however, the researchers may have found a path to safely storing this dangerous cesium.
    — Nathaniel Scharping, Discover Magazine, 13 Aug. 2018
  • Those who fear they may have been exposed to elevated levels of cesium should contact their medical providers.
    — Cheryl V. Jackson, IndyStar, 21 Aug. 2025
  • Radioactive iodine and cesium have also turned up in milk and vegetables (such as spinach) around Fukushima.
    — Elizabeth Preston, Discover Magazine, 26 Mar. 2011
  • Anybody who fears they may have been exposed to elevated levels of cesium should contact their medical providers.
    — Julia Gomez, USA Today, 23 Aug. 2025
  • Anybody who fears they may have been exposed to elevated levels of cesium should contact their medical providers.
    — Julia Gomez, USA Today, 22 Aug. 2025
  • The advance marks a major step toward replacing the legacy cesium clocks that have anchored global timekeeping for decades.
    — Neetika Walter, Interesting Engineering, 17 Nov. 2025
  • The capsule contains a radioactive isotope of cesium called cesium-137.
    — Will Sullivan, Smithsonian Magazine, 31 Jan. 2023
  • The particles grab on to ions of cesium, strontium, and other dangerous isotopes in the water, making room for them by spitting out sodium.
    — Vince Beiser, WIRED, 27 Apr. 2018
  • The shrimp may be contaminated with cesium-137, a radioactive form of cesium.
    — Jenna Anderson, Health, 19 Aug. 2025
  • Prussian blue helped remove cesium from the soil around the Fukushima power plant after the 2011 tsunami.
    — Jennifer Ouellette, Ars Technica, 20 June 2022
  • The researchers began by cooling individual cesium atoms down to almost absolute zero and get them all in the same quantum state.
    — Jackie Appel, Popular Mechanics, 10 Aug. 2023
  • Within it, the team can vaporize mixtures containing uranium, cerium, and cesium, and then control how the vapor is cooled.
    — Christopher McFadden, Interesting Engineering, 24 May 2026
  • The highest concentrations of cesium didn’t simply correlate to the areas with the highest rainfall.
    — Alex Fox, Smithsonian Magazine, 24 Apr. 2021

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'cesium.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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