hesperian epoch
Word Rarity
Very rare
Frequency: Zipf frequency 1.47 in modern English
26
Scrabble Score
14
Letters
5
Syllables
10
Unique Chars
Meaning
name
The second of the three Martian geologic epochs, approximately from 3,500 million years ago to 1,800 million years ago, marked by lava flows, preceded by the Noachian epoch, and followed by the Amazonian epoch.