neoproterozoic
Word Rarity
Very rare
Frequency: Zipf frequency 1.41 in modern English
27
Scrabble Score
14
Letters
4
Syllables
9
Unique Chars
Meaning
adj
Of a geologic era within the Proterozoic eon; comprises the Tonian, Cryogenian and Ediacaran periods from about 1000 to 544 million years ago, when algae and sponges flourished.
name
The Neoproterozoic era.
Etymology
Etymology tree Proto-Indo-European *nu Proto-Indo-European *néwos Proto-Hellenic *néwos Ancient Greek νέος (néos) Ancient Greek νεο- (neo-)der. English neo- English Proterozoic English Neoproterozoic From neo- + Proterozoic.