Clue: Sigmoid letter
Sigmoid letter is a crossword puzzle clue that we have spotted 6 times. There are related clues (shown below).
Referring crossword puzzle answers
Likely related crossword puzzle clues
Recent usage in crossword puzzles:
- New York Times - Oct. 10, 1992
- New York Times - Sept. 4, 1989
- New York Times - May 31, 1989
- New York Times - Jan. 26, 1988
- New York Times - Aug. 4, 1985
- New York Times - March 23, 1982
