1. The eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
   - Precambrian, Precambrian eon, Precambrian period

Type of: aeon, eon

• scattered
• throne
• throng
• thronged
• throstle
• throttle
• throttle valve
• throttlehold
• throttler
• throttling
• through
• through an experiment
• through and through
• through empirical observation
• through with
• throughout
• throughput
• throughway
• throw
• throw a fit
• throw a spanner in the works
• throw a wobbly
• throw cold water on
• throw in the towel
• throw off