butt-welding butt·wel·ding uncommon noun 1. creating a butt joint by welding Synonymsbutt welding 2. creating a butt joint by welding Synonymsbutt weldingbutt-welding Related words Word family buttweldbutt-weld Broader terms welding Narrower terms flash welding WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
