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

• repentant
• repentantly
• repercuss
• repercussion
• repercussive
• repertoire
• repertory
• repertory company
• reperusal
• repetend
• repetition
• repetitious
• repetitiously
• repetitiousness
• repetitive
• repetitive strain injury
• repetitively
• repetitiveness
• rephrase
• rephrasing
• repine
• replace
• replaceability
• replaceable
• replacement