nuclear reactor

[noo-klee-er ree-ak-ter, nyoo-] / ˈnu kli ər riˈæk tər, ˈnyu- /

NOUN

atomic reactor

Synonyms

STRONGEST

reactor

WEAK

atomic furnace atomic pile atomic power plant atomic reactor breeder reactor chain reactor core reactor fast breeder reactor neutron factory nuclear furnace nuclear power plant pile plutonium reactor reactor pile thermonuclear reactor uranium reactor

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.

She sat alongside a nuclear reactor during a flight with Energy Secretary Chris Wright; she still isn’t quite sure she understands what a nuclear reactor is.

From The Wall Street Journal • Apr. 11, 2026

Today, Bloom’s factory can produce one gigawatt of capacity a year, about as much as a nuclear reactor, but it expects to double capacity before the end of the year.

From Barron's • Feb. 6, 2026

“Add a small scale nuclear reactor and the problem just got a little bit more complex.”

From MarketWatch • Jan. 17, 2026

Slovakia's Prime Minister Robert Fico will meet US President Donald Trump on Saturday, his office said, to sign a deal with Washington towards building a new nuclear reactor.

From Barron's • Jan. 16, 2026

But the possibility of a nuclear reactor losing every source of power at once had never seemed real, so no one had thought through solutions ahead of time.

From "Meltdown" by Deirdre Langeland