"Greek letter after chi" NYT crossword answer is:PSI (3 letters length)
The answer for "Greek letter after chi" crossword clue is listed above to help you solve the puzzle you are currently working on.
The Greek letter after chi is psi, which is the 23rd letter of the Greek alphabet. It is often represented by the symbol ψ and is used in physics, engineering, mathematics, and other sciences. It is also used in crossword puzzles, such as the New York Times crossword puzzle from November 20, 2023.