Priscoan

• n. 冥古代

英英释义

Noun:

1. 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

近反义词

【近义词】

• Hadean 地狱的