Reactor

/rɪˈæktər/

Meaning & Definition

noun
A device or apparatus in which nuclear reactions occur, especially one for the generation of energy.
The new nuclear reactor was designed to be more efficient and safer than older models.
A vessel or container in which chemical reactions occur, especially one controlled to produce energy or chemicals.
The chemical reactor allowed researchers to synthesize the compound under controlled conditions.
In computing, a system or component that responds to certain inputs or events.
The software reactor was programmed to handle user requests in real time.

Etymology

From the word 'react', which means to respond to a stimulus, combined with the suffix '-or', indicating a doer or agent.

Common Phrases and Expressions

nuclear reactor
A reactor that uses nuclear fission to generate energy.
chemical reactor
A vessel used to contain and control chemical reactions.

Related Words

nuclear
Relating to atomic nuclei or nuclear reactions.
fission
The process of splitting a nucleus to release energy.
fusion
The process of combining two nuclei to form a heavier nucleus.

Slang Meanings

A person who responds quickly or effectively in situations.
He's a real reactor in emergencies, always saving the day.