Solder definition

sŏdər
Any of various fusible alloys, usually tin and lead, used to join metallic parts.
noun
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Something that joins or cements.
noun
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To join or unite.

The agreement soldered the factions into an alliance.

verb
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To unite or repair (parts, for example) with solder.
verb
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A metal alloy that is heated and used to join or patch metal parts or surfaces: soft solders of tin-lead alloys melt easily; hard (or brazing) soldershard soldersbrazing solders of copper-zinc alloys melt only at red heat.
noun
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To unite or repair something with solder.
verb
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To be joined or united.
verb
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Anything that joins or fuses; bond.
noun
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To join, patch, etc. with solder.
verb
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To act as a bond between; unite.
verb
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To become joined or united as by solder.
verb
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To join things with solder.
verb
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Any of various alloys, often of tin and lead, that are used to join small pieces of metal together.
noun
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To join with (as if with) solder.
verb
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Other Word Forms

Noun

Singular:
solder
Plural:
solders

Origin of solder

  • Middle English soudur from Old French soudure, soldure from souder, soulder to solder from Latin solidāre to make solid from solidus solid solid

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English solderen, from Old French solder (Modern French souder) from Latin solidāre, present active infinitive of solidō (“make solid").

    From Wiktionary