reactor
noun
re·ac·tor
rē-ˈak-tər 
Examples of reactor in a Sentence
Recent Examples on the Web
While this tech isn't entirely new, recent breakthroughs in materials, efficiency, and safety are finally starting to light the path to everyday practical applications – no reactors required.
—
Joe Salas, New Atlas, 26 Mar. 2025
With small nuclear fission reactors — and perhaps fusion power plants — Jupiter's moons Ganymede and Callisto, Saturn's moon Titan, Neptune's moon Triton and the whole Kuiper Belt may come into range.
—Dave S. Brody, Space.com, 26 Mar. 2025
In November 2023, NorthStar marked a major milestone by completing the removal of the boiling water reactor from the Vallecitos Nuclear Center and shipping it for safe disposal at a facility operated by NorthStar affiliate Waste Control Specialists in Texas.
—George Avalos, Mercury News, 25 Mar. 2025
These smaller reactors will likely be safer to run and operate, and may be a good fit for rural communities looking to transition to carbon-neutral energy systems.
—Aditi Verma, The Conversation, 25 Mar. 2025
See All Example Sentences for reactor
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.
Joe Salas, New Atlas, 26 Mar. 2025
With small nuclear fission reactors — and perhaps fusion power plants — Jupiter's moons Ganymede and Callisto, Saturn's moon Titan, Neptune's moon Triton and the whole Kuiper Belt may come into range.
—Dave S. Brody, Space.com, 26 Mar. 2025
In November 2023, NorthStar marked a major milestone by completing the removal of the boiling water reactor from the Vallecitos Nuclear Center and shipping it for safe disposal at a facility operated by NorthStar affiliate Waste Control Specialists in Texas.
—George Avalos, Mercury News, 25 Mar. 2025
These smaller reactors will likely be safer to run and operate, and may be a good fit for rural communities looking to transition to carbon-neutral energy systems.
—Aditi Verma, The Conversation, 25 Mar. 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 16 Apr. 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)
Love words? Need even more definitions?
Merriam-Webster unabridged
Share