radioisotope
Americannoun
noun
Other Word Forms
Etymology
Origin of radioisotope
Vocabulary lists containing radioisotope
Earth Science - Middle School
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Chemistry - High School
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Earth Science - High School
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
Voyager 1, like its twin Voyager 2, is powered by a radioisotope thermoelectric generator that converts heat from decaying plutonium into electricity.
From Science Daily • May 4, 2026
Now, the team is building a new kind of fusion reactor, which will be able to produce any kind of radioisotope for research or medicine, right by the hospitals that need it.
From BBC • Feb. 26, 2025
The probes use three plutonium dioxide radioisotope thermoelectric generators.
From Salon • May 7, 2023
For the weapon’s radiation to be lethal, the radioisotope used would have to have a strong enough intensity to harm people.
From New York Times • Oct. 25, 2022
Starting around Christmas 1937, when he administered his first dose of a phosphorus radioisotope to a patient at the university medical center, John’s need for the substance became “insatiable,” Kamen recalled.
From "Big Science" by Michael Hiltzik
![]()
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.