Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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No pronunciation record was provided for this word.
noun
A form of radiometric dating used to estimate the time since a rock solidified.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: geography, geology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *gwher-der. Ancient Greek θερμός (thermós)der. English thermo- Ancient Greek χρόνος (khrónos)bor. English chrono- Ancient Greek -λογῐ́ᾱ (-logĭ́ā)bor. Latin -logialbor. French -logiebor. English -logy English chronology English thermochronology From thermo- + chronology.
