Crossword clues for the word: IODO The word IODO has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for IODO Showing 1 to 9 of 9 results Clue(s) "Element no. 53, in prefix form" Antiseptic compound: Prefix. Antiseptic element (comb. form) Antiseptic opening Antiseptic: Comb. form Chemical element: Prefix. Combining form for an antiseptic Prefix for an antiseptic Prefix for an element used in antiseptics