Definition of Pythagorean number in English:

Pythagorean number

noun

  • 1A number as conceived in cosmic or mystical terms by Pythagoras or his followers.

  • 2Mathematics each of the integers in a Pythagorean triple, corresponding to the sides of a plane right-angled triangle; also in extended use.

Origin

Early 17th century; earliest use found in George Abbot (1562–1633), archbishop of Canterbury.