noun
reactor
ree-AK-tuh
noun
1
A structure or device that produces energy through a controlled nuclear reaction.
"The power station has three nuclear reactors."
2
A person or thing that reacts to something.
"He is a slow reactor to sudden bad news."
How to Use Reactor
Learner’s notesIn plain EnglishMost often used for the large structure that generates power through nuclear reactions.
Common pairings
nuclear reactor
reactor core
Word Forms
reactors plural
Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “reactor”
A quick quiz — meaning, synonyms & usage
→
Fill the Gap
Can you complete this real example?
The power station has three nuclear _____.
Etymology
From "react" plus the agent suffix "-or."