cold welding · noun1
From cold + welding. From being a form of welding not requiring adding heat.
cold welding · verb2
See the etymology of the corresponding lemma form.
Etymology from Wiktionary, CC BY-SA 4.0.
cold welding
Today it means: A phenomenon where in a vacuum, two clean oxide-less uncoated metal surfaces will fuse, weld, or merge together when they come into contact with each other, without any other action required (without fusion heating). Full definition →