I. ˈsä-dər, ˈsȯ-, Britain also ˈsäl-dər, ˈsōl- noun
Etymology: Middle English soudure, from Anglo-French, from souder to solder, from Latin solidare to make solid, from solidus solid
Date: 14th century
1. : a metal or metallic alloy used when melted to join metallic surfaces ; especially : an alloy of lead and tin so used
2. : something that unites
II. verb
( sol·dered ; sol·der·ing -d(ə-)riŋ)
Date: 15th century
transitive verb
1. : to unite or make whole by solder
2. : to bring into or restore to firm union
a friendship solder ed by common interests
intransitive verb
1. : to use solder
2. : to become united or repaired by or as if by solder
• sol·der·abil·i·ty ˌsä-də-rə-ˈbi-lə-tē, ˌsȯ- noun
• sol·der·er ˈsä-dər-ər, ˈsȯ- noun