Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

nuclear reactor

noun

Definition of nuclear reactor

physics

  1. :  a large device that produces nuclear energy



Word by Word Definitions

nuclearplay
  1. :  of, relating to, or constituting a nucleus

    :  of or relating to the atomic nucleus

    :  used in or produced by a nuclear reaction (as fission)

reactorplay
  1. :  one that reacts

    :  a device (as a coil, winding, or conductor of small resistance) used to introduce reactance into an alternating-current circuit

    :  a vat for an industrial chemical reaction


Seen and Heard

What made you want to look up nuclear reactor? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to defraud especially of money

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

oily prompt maudlin angry
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ