rb-sr
Word Rarity
Rare
Frequency: Zipf frequency 3.53 in modern English
6
Scrabble Score
4
Letters
2
Syllables
3
Unique Chars
Meaning
Example Sentences
- "The age of the Panda intrusion has been dated precisely by Rb-Sr determinations on kimberlitic phlogopite (n = 7), yielding a robust isochron of 53.3±0.6 Ma (Early Eocene, Ypresian)."