Laughing __ (layman's term for the nitrous oxide used by dentists)

Let's find possible answers to "Laughing __ (layman's term for the nitrous oxide used by dentists)" crossword clue. First of all, we will look for a few extra hints for this entry: Laughing __ (layman's term for the nitrous oxide used by dentists). Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.