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Synonyms

detonator

American  
[det-n-ey-ter] / ˈdɛt nˌeɪ tər /

noun

  1. a device, as a percussion cap, used to make another substance explode.

  2. something that explodes.


detonator British  
/ ˈdɛtəˌneɪtə /

noun

  1. a small amount of explosive, as in a percussion cap, used to initiate a larger explosion

  2. a device, such as an electrical generator, used to set off an explosion from a distance

  3. a substance or object that explodes or is capable of exploding

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of detonator

First recorded in 1815–25; detonate + -or 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The rocket is lit using an oversized lever designed to look like a “Looney Tunes” version of a TNT detonator.

From Salon • Dec. 24, 2025

For more common parts, like the plastics and metals and wiring inside each detonator, there are also questions about how the years spent in warheads might affect their integrity.

From Seattle Times • Sep. 19, 2023

You’d think he was pointing a detonator at Aquaman.

From The Guardian • Oct. 12, 2019

A scientist who lost three fingers when a detonator exploded as he handled it has been compensated by the Ministry of Defence.

From BBC • May 21, 2017

Powell felt for the security of his detonator.

From "I, Robot" by Isaac Asimov