rubidium-strontium
Word Rarity
Very rare
Frequency: Zipf frequency 2.05 in modern English
24
Scrabble Score
17
Letters
6
Syllables
10
Unique Chars
Meaning
noun
Designating a method of geological dating based on the relative amounts in rock of rubidium-87 and its beta-decay product, strontium-87.
Uncountable
Example Sentences
- "Isotopic dating of meteorites using the rubidium-strontium system and others indicates that the most primitive rocks in the solar system are 4.56 billion years old, determined rather precisely."