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 aeon

Type of: aeon, eon

• trunnion
• truss
• truss bridge
• trussed
• trust
• trust account
• trust busting
• trust company
• trust corporation
• trust deed
• trust fund
• trust territory
• trustable
• trustbuster
• trusted
• trustee
• trustee account
• trustee-beneficiary relation
• trusteeship
• Trusteeship Council
• truster
• trustful
• trustfully
• trustfulness
• trustiness