reactor
noun
re·ac·tor
rē-ˈak-tər 
Examples of reactor in a Sentence
Recent Examples on the Web
These include plans to streamline the reactor approval process and boost the construction of experimental reactors by the Department of Energy.
—
ArsTechnica, 27 May 2025
Nuclear energy stocks soared after President Donald Trump signed a set of executive orders on Friday meant to accelerate the development of nuclear power reactors in the U.S. and revamp the Nuclear Regulatory Commission (NRC).
—Joseph Zeballos-Roig, Quartz, 23 May 2025
Trump said reactors are safe and clean, but did not mention climate benefits.
—Matthew Daly, Chicago Tribune, 23 May 2025
Advocates fear the orders weaken safeguards that protect the public from unsafe reactor designs and reduce the risk that used fuel can be diverted for nefarious purposes.
—Davis Winkie, USA Today, 23 May 2025
See All Example Sentences for reactor
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ArsTechnica, 27 May 2025
Nuclear energy stocks soared after President Donald Trump signed a set of executive orders on Friday meant to accelerate the development of nuclear power reactors in the U.S. and revamp the Nuclear Regulatory Commission (NRC).
—Joseph Zeballos-Roig, Quartz, 23 May 2025
Trump said reactors are safe and clean, but did not mention climate benefits.
—Matthew Daly, Chicago Tribune, 23 May 2025
Advocates fear the orders weaken safeguards that protect the public from unsafe reactor designs and reduce the risk that used fuel can be diverted for nefarious purposes.
—Davis Winkie, USA Today, 23 May 2025
See All Example Sentences for reactor
Cite this Entry
“Reactor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reactor. Accessed 2 Jun. 2025.
Copy CitationKids Definition
reactor
noun
re·ac·tor
rē-ˈak-tər
1
: one that reacts
2
: a device for the controlled release of nuclear energy (as for producing heat)
Medical Definition
reactor
noun
re·ac·tor
rē-ˈak-tər
1
2
a
: a piece of equipment in which a chemical reaction and especially an industrial chemical reaction is carried out
b
: a device for the controlled release of nuclear energy (as for producing heat)
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