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solder

American  
[sod-er] / ˈsɒd ər /

noun

  1. any of various alloys fused and applied to the joint between metal objects to unite them without heating the objects to the melting point.

  2. anything that joins or unites.

    the solder of their common cause.


verb (used with object)

  1. to join (metal objects) with solder.

  2. to join closely and intimately.

    two fates inseparably soldered by misfortune.

  3. to mend; repair; patch up.

verb (used without object)

  1. to unite things with solder.

  2. to become soldered or united; grow together.

solder British  
/ ˈsɒdər, ˈsɒldə /

noun

  1. an alloy for joining two metal surfaces by melting the alloy so that it forms a thin layer between the surfaces. Soft solders are alloys of lead and tin; brazing solders are alloys of copper and zinc

  2. something that joins things together firmly; a bond

"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

verb

  1. to join or mend or be joined or mended with or as if with 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

Other Word Forms

  • desolder verb (used with object)
  • resolder verb
  • solderable adjective
  • solderer noun
  • solderless adjective

Etymology

Origin of solder

1325–75; (noun) Middle English soudour < Old French soudure, soldure, derivative of solder to solder < Latin solidāre to make solid, equivalent to solid ( us ) solid + -āre infinitive suffix; (v.) late Middle English, derivative of the noun

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.

Over the past century, lead was used in paint, pipes, solder, and, most disastrously, automotive fuel.

From Science Daily • Dec. 4, 2024

Khalife didn’t give his name, but did reveal he was a serving solder.

From BBC • Nov. 28, 2024

So from a young age, I learned how to solder motherboards and inventory microchips and would write marketing materials for COMDEX, which was the big computer trade show back then.

From Los Angeles Times • Jan. 17, 2024

But, according to Stefan Lilov, the band’s Switzerland-based guitarist, “some of the equipment was in terrible shape. We had to have a guy solder the guitar pedals together as we were recording.”

From New York Times • May 30, 2023

Such foundries were not unknown to the Inka, but Andean societies vastly preferred to hammer metal into thin sheets, form the sheets around molds, and solder the results.

From "1491" by Charles C. Mann