from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The syncretistic philosophy expounded by Pythagoras, distinguished chiefly by its description of reality in terms of arithmetical relationships.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the esoteric and metaphysical beliefs held by Pythagoras and his followers
from the GNU version of the Collaborative International Dictionary of English
- n. The doctrines of Pythagoras or the Pythagoreans.
from The Century Dictionary and Cyclopedia
- n. Same as Pythagorism.
Pythagorean + -ism (Wiktionary)