Definition of "quincunx" in English

noun

1. An arrangement of five units with four forming the corners of a square and the fifth at the centre of the square, a pattern corresponding to the five-spot on dice, playing cards, or dominoes.

2. (astrology) An angle of five-twelfths of a circle, or 150°, between two objects.

3. A Galton board.

4. (historical, numismatics) A bronze coin minted during the Roman Republic, valued at five-twelfths of an as.