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[sod-er] /ˈsɒd ər/
any of various alloys fused and applied to the joint between metal objects to unite them without heating the objects to the melting point.
anything that joins or unites:
the solder of their common cause.
verb (used with object)
to join (metal objects) with solder.
to join closely and intimately:
two fates inseparably soldered by misfortune.
to mend; repair; patch up.
verb (used without object)
to unite things with solder.
to become soldered or united; grow together.
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
Related forms
solderable, adjective
solderer, noun
solderless, adjective
desolder, verb (used with object)
resolder, verb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for solder
  • The pair created this image by injecting molten solder into a tiny silicone channel.
  • Deleading solder creates worries about electronics reliability.
  • solder all the short leads in the columns together, down toward the empty space at the bottom of the board.
  • solder is used to connect electric wires or other metal parts together.
  • Artisans solder a metal framework into which they pour vibrant powdered enamel.
  • Now you must delicately solder the sense wire to the bus wire everywhere they touch.
  • Perfect for parents and kids to do together-no glue or solder necessary, and the plastic components snap together with ease.
  • But connecting hundreds or thousands of them in a complex circuit required wire and solder.
  • All soldering calls for coating the metal with a flux before the solder is applied.
  • He's even managed to make solder into a design feature.
British Dictionary definitions for solder


/ˈsɒldə; US ˈsɒdər/
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
something that joins things together firmly; a bond
to join or mend or be joined or mended with or as if with solder
Derived Forms
solderable, adjective
solderer, noun
Word Origin
C14: via Old French from Latin solidāre to strengthen, from solidussolid
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
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Word Origin and History for solder
mid-14c., sawd, from O.Fr. soldure, from solder "to join with solder," from L. solidare "to make solid," from solidus "solid" (see solid). Modern form is from early 15c. The -l- is still pronounced in Great Britain. The noun is first attested late 14c.
Online Etymology Dictionary, © 2010 Douglas Harper
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