buttweld means the junction formed by this kind of welding. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
Etymology
From butt + weld.
noun
- The junction formed by this kind of welding.
verb
- To weld by gradually heating the two ends with a weld plate and then joining them under a specific pressure, used to connect parts which are nearly parallel and do not overlap.