Hvernig á að dæma "priscoan eon"

• "Priscoan eon" fram á Enska.

• "priscoan eon" fram á Enska.

Merkingar og skilgreiningar á "priscoan eon"

Noun

the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life

Samheiti:

• Hadean
• Hadean time
• Hadean eon
• Hadean aeon
• Priscoan
• Priscoan eon
• Priscoan aeon