[mass noun]a low-melting alloy, especially one based on lead and tin or (for higher temperatures) on brass or silver, used for joining less fusible metals 焊料
verb
[with obj.]join with solder 焊接
派生 solderable adjective solderer noun 语源
Middle English: from Old French soudure, from the verb souder, from Latin solidare 'fasten together', from solidus 'solid'