soldering iron

American

noun

an instrument for melting and applying solder.

soldering iron British

noun

a hand tool consisting of a handle fixed to a copper tip that is heated, electrically or in a flame, and used to melt and apply solder

"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 soldering iron

First recorded in 1680–90

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.

See Examples For:

soldering iron

Armed with a soldering iron and good intentions, Tuna paid tribute to what the fires took.

From Los Angeles Times ● Jan. 26, 2026

At a hearing on Sunday, Bolsonaro admitted trying to open his ankle monitor with a soldering iron until he "came to his senses", court documents show.

From BBC ● Nov. 25, 2025

Bolsonaro said he "experienced a certain paranoia between Friday and Saturday due to medication" when he had used a soldering iron on the monitoring bracelet, the document read.

From Barron's ● Nov. 23, 2025

You will need a soldering iron to undo the wiring connection and then you’ll have to re-solder a new battery in.

From Seattle Times ● May 2, 2024

He could use a soldering iron and hammer two boards together so that the wood did not split and the nails did not bend.

From "Catch-22" by Joseph Heller

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023