Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The theory that the sun is the center of the universe
  • n. The theory of the heliocentric model, that the planets including Earth orbit the Sun, in contrast to geocentrism.

Etymologies

Shortened from heliocentricism < heliocentric + -ism < from Greek ηλιοκεντρικός (heliokentrikos) "having the sun as his centre", from ancient Greek ήλιος (helios) "sun" + κέντρον (kentron) "centre". (Wiktionary)

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