Definition of solder in English:


Pronunciation /ˈsädər/ /ˈsɑdər/

Translate solder into Spanish


  • 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.

    ‘remove the fitting using a blowtorch to melt the solder’
    • ‘the Roman silversmith did indeed use several different solders’

transitive verb

[with object]
  • Join with solder.

    ‘the wires to this clip are soldered to the circuit board’
    • ‘the soldered terminal joints’
    • ‘These joining methods may include welding, brazing, soldering, riveting, or bolting.’
    • ‘Applying the soldering iron to the wires where they are soldered to the Centronics connector and pulling gently should be enough to undo the wires from the unwanted connector.’
    • ‘Cut a small sliver of the silver solder for each joint to be soldered.’
    • ‘Having undone the existing unit I discovered that the wires were soldered to the terminals.’
    • ‘In addition, they can be joined by brazing and soldering.’
    • ‘I felt that a bond of trust was soldered between us.’
    • ‘The tape was soldered to the glass after the edge of the glass was coated with a film of copper to make it more receptive to the solder.’
    • ‘When some solder is applied to the pins previous to soldering the wires, the latter ones will connect more easy.’
    • ‘Almost any method of joining is applicable to aluminum: riveting, welding, brazing or soldering.’
    • ‘‘Yep,’ he said as he soldered a wire onto a circuit board that was attached to a box of gears.’
    • ‘The ordinary grades of wrought zinc can be soldered easily by conventional methods.’
    • ‘Copper can also be welded, brazed and soldered satisfactorily.’
    • ‘Steph and Peter get down to the tricky business of soldering the widgets and gadgets that make up the complex technology inside the new digital studios.’
    • ‘I find the physical work of soldering the wiring to the keyboard encoder challenging, mostly due to the tight quarters.’
    • ‘He said the technicians needed a week to repair the leaking pipe because they had to block it first from water inundation before soldering the leakages.’
    • ‘The fire is believed to have happened when the plumber was soldering a water pipe and insulation in the cavity wall caught fire.’
    • ‘I have tied and soldered my own disc-brake mountain bike wheels for years now, and I notice a difference not only in lateral stiffness but especially in application of the disc brake.’
    • ‘She thinks that a view through an electron microscope should provide the answers by showing the places in which they were soldered, but as the Zlatinitsa treasure shows, one can never be sure.’
    • ‘The coils are soldered in series, such that the current rotates in opposite directions, between the left and right signal-out wires.’
    • ‘To prepare for the reinstallation, a traditional support system of saddle bars and copper tie wires were soldered onto each window panel.’
    attach, join, fasten, fix, affix, couple, link, bridge, secure, make fast, tie, tie up, bind, fetter, strap, rope, tether, truss, lash, hitch, moor, anchor, yoke, chain


Middle English from Old French soudure, from the verb souder, from Latin solidare ‘fasten together’, from solidus ‘solid’.