# reactor

> English word · Noun · IPA /ɹiˈæktɚ/ · frequency rank #9,239

## Definitions
1. A person who responds to a suggestion, stimulation or other influence.
2. A structure used to contain chemical or other reactions.
3. A device which uses atomic energy to produce heat.
4. A chemical substance which responds to the presence of, or contact with, another substance.
5. An electrical component with reactance

## Etymology
From react + -or.

## Easily confused with
- **reacts** (https://plainspell.com/en/vs/reactor-vs-reacts)
- **rector** (https://plainspell.com/en/vs/reactor-vs-rector)
- **realtor** (https://plainspell.com/en/vs/reactor-vs-realtor)
- **rectory** (https://plainspell.com/en/vs/reactor-vs-rectory)
- **react** (https://plainspell.com/en/vs/react-vs-reactor)
- **raptor** (https://plainspell.com/en/vs/raptor-vs-reactor)
- **reaction** (https://plainspell.com/en/vs/reaction-vs-reactor)

## Common misspellings (10)
`eractor`, `raector`, `reacctor`, `reacotr`, `reactorr`, `reactro`, `reacttor`, `reatcor`, `recator`, `rreactor`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/reactor