How to Use americium in a Sentence
americium
noun-
To generate the same power output, an americium RTG must be significantly larger or heavier.
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Kaif Shaikh,
Interesting Engineering,
14 Nov. 2025
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If americium systems mature, both fuels may coexist—plutonium for high-power missions, Americium for long-duration or low-power ones.
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Kaif Shaikh,
Interesting Engineering,
14 Nov. 2025
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Minor actinides, including neptunium, americium, and curium, are transuranic elements produced in nuclear fuel during reactor operation.
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Aman Tripathi,
Interesting Engineering,
1 May 2026
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For more than a decade, the University of Leicester has been developing americium power systems in partnership with the European Space Agency and the UK Space Agency.
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Kaif Shaikh,
Interesting Engineering,
14 Nov. 2025
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Meanwhile other nations are pursuing or preserving their own RPS capabilities, with Europe’s sights set on americium 241, a radioisotope with a five-times-longer half-life but a five-times-weaker energy output than plutonium 238.
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Hannah Richter,
Scientific American,
13 Aug. 2025
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'americium.' 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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