rubidium-strontium dating
Word Rarity
Very rare
Frequency: Zipf frequency 2.05 in modern English
32
Scrabble Score
23
Letters
8
Syllables
12
Unique Chars
Meaning
n
geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47,000,000,000 years