Pronunciation: /riˈæktər/
noun a device used to induce and control a nuclear reaction
A1 The nuclear reactor generates electricity.
A2 The reactor overheated and caused a meltdown.
B1 The reactor core needs to be cooled to prevent a meltdown.
B2 The new reactor design is more efficient and safer.
C1 The reactor's control rods regulate the nuclear reaction.
C2 The reactor containment vessel is designed to withstand extreme conditions.
formal The nuclear reactor was shut down for maintenance.
informal They had to fix the reactor before it caused any problems.
slang The reactor was acting up so they had to call in the experts.
figurative His mind was like a reactor, constantly processing new information.
reacted
reactors
more reactive
most reactive
react
will react
have reacted
is reacting
reactor
reactor
to react
reacting
reacting