Top Definition
Of or relating to a span of time equal to an eon, that is, 1,000,000,000 years.
The eonic energy budget of the sun results in the transmutation of trillions of metric tons of mass into energy.
by Gregory V. Richardson August 24, 2005
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.