The primary division of geologic time which are, from oldest to youngest, the Hadean, Archean, Proterozoic, and Phanerozoic eons.

1640s, from Late Latin aeon, from Greek aion "age, vital force; a period of existence, a lifetime, a generation; a long space of time," in plural, "eternity," from PIE root *aiw- & [..]

Exhale out nose When you think somethings funny, but don't actually laugh out loud making LOL an inappropriate term.

A rough measurement of time. Equivalent to about one week.

*the longest amount of measurable time *a kick ass song by 311

A first world pompous preppy male or female. who follows the crowd, Speaks in text talk, is obsessed with Gucci and consumerism and has no real life experience other than spending daddy's mone [..]

A long fucking time

a long period of time

second-largest unit of geologic time, smaller than a supereon and larger than an era.

Time

The largest unit of geologic time. Eons are divided into eras.

(n) the longest division of geological time(n) an immeasurably long period of time(n) (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation [..]

The largest time unit on the geologic time scale.

The largest time unit on the geologic time scale. more details...

Enhanced Other Networks. Allows interruption of RDS bulletins from other local stations.

the largest unit of geological time epoch (geological)

AMRAAM Engagement Order Number.

AMRAAM Engagement Order Number.