Crossword clues for the word: HYDROXIDE The word HYDROXIDE has appeared as an answer to at least 2 crossword clues on different crossword puzzles. Crossword clues for HYDROXIDE Showing 1 to 2 of 2 results Clue(s) Part of NaOH (just to give The Snack's old rival a smidgen of equal time) Part of NaOH (just to show that I'm not above giving the Snack's main rival a smidge of equal time)