Definition of arc weld
(Entry 1 of 2)
: a weld made by arc welding
arc-weld
transitive verbDefinition of arc-weld (Entry 2 of 2)
: to join by means of a form of fusion welding in which the heat for fusion is supplied by an electric arc formed between a metal or carbon electrode and the part being welded or between two separate electrodes or between the two separate pieces being welded
Test Your Vocabulary
Slippery Words Quiz—Changing with the Times
- What is an earlier meaning of nice?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Slippery Words Quiz—Changing with the Times
Do you know these earlier meanings of words?
Take the quizWords of Snow and Ice Quiz
A selection of words from the chillier parts of t...
Take the quizTrue or False?
Test your knowledge - and maybe learn something a...
Take the quizSCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share arc weld