Examples of radioisotope in a Sentence
Recent Examples on the Web
The Power to Explore Challenge named winners in grades K-4, 5-8 and 9-12 for writing a plan for a mission to any moon in the solar system using radioisotope power systems.
—
Suzanne Wright, USA Today, 14 Oct. 2025
Iodine radioisotopes have half-lives that span from a tenth of a second to 16 million years.
—Andrea Richard, The Conversation, 2 Oct. 2025
So far, radioisotope power systems (RPSs) in space have utilized plutonium-238 (Pu-238) as a fuel source.
—Prabhat Ranjan Mishra, Interesting Engineering, 26 Sep. 2025
Many long-term spacecraft, such as the Mars rovers Curiosity and Perseverance, use radioisotope thermoelectric generators (RTGs) to provide power.
—Keith Cooper, Space.com, 24 Sep. 2025
See All Example Sentences for radioisotope
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Suzanne Wright, USA Today, 14 Oct. 2025
Iodine radioisotopes have half-lives that span from a tenth of a second to 16 million years.
—Andrea Richard, The Conversation, 2 Oct. 2025
So far, radioisotope power systems (RPSs) in space have utilized plutonium-238 (Pu-238) as a fuel source.
—Prabhat Ranjan Mishra, Interesting Engineering, 26 Sep. 2025
Many long-term spacecraft, such as the Mars rovers Curiosity and Perseverance, use radioisotope thermoelectric generators (RTGs) to provide power.
—Keith Cooper, Space.com, 24 Sep. 2025
See All Example Sentences for radioisotope
Cite this Entry
“Radioisotope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radioisotope. Accessed 26 Oct. 2025.
Copy CitationKids Definition
radioisotope
noun
ra·dio·iso·tope
ˌrād-ē-ō-ˈī-sə-ˌtōp 
: a radioactive isotope
Medical Definition
radioisotope
noun
ra·dio·iso·tope
ˌrād-ē-ō-ˈī-sə-ˌtōp
: a radioactive isotope compare radioelement
Love words? Need even more definitions?
Merriam-Webster unabridged
Share