Crossword clues for the word: COTAN The word COTAN has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for COTAN Showing 1 to 5 of 5 results Clue(s) "Right-triangle ratio, for short" Cos/sin Ratio of two sides in a right-angled triangle, in brief Trig function Trig ratio