Meanings
- attributiveuncountableDesignating a method of geological dating based on the relative amounts in rock of rubidium-87 and its beta-decay product, strontium-87.
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.
1999, Jonathan I Lunine, Earth: Evolution of a Habitable World, page 101Synonyms: Rb-Sr
Synonyms & antonyms
nounDesignating a method of geological dating based on the relative amounts in rock of rubidium-87 and its beta-decay product, strontium-87.
Cite this entry
rubidium-strontium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rubidium-strontium
“rubidium-strontium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rubidium-strontium. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “rubidium-strontium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rubidium-strontium.
Source: rubidium-strontium on Wiktionary, CC BY-SA 4.0.