Home › Words › T › tephrochronologytephrochronologytephrochronology means A geochronological technique that uses discrete layers of tephra to create a chronological framework in which paleoenvironmental or archaeological records can be placed.Among words judged in Lexicurio's Arena, tephrochronology ranks #6,937 of 42,747 for Qualifying.EtymologyFrom tephro- + chronology.nounA geochronological technique that uses discrete layers of tephra to create a chronological framework in which paleoenvironmental or archaeological records can be placed.Definitions & examples from Wiktionary (CC BY-SA 3.0).