a solder fusible at temperatures below 700°F (370°C), generally an alloy of lead and tin.
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Question 1 of 7
What does “vacillate” mean?
Compare hard solder.
Origin of soft solder
First recorded in 1835–45
Words nearby soft solder
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020