Relating to the study of time and dating using astronomical observations and calculations.
From astro- (star, astronomical) combined with chronological (relating to time order). This rare term combines two Greek roots: astron (star) and chronos (time).
Ancient astronomers literally invented chronology by watching celestial patterns—they dated events by lunar and solar cycles, so 'astrochronological' is really what all timekeeping was before clocks existed.
Complete word intelligence in one call. Free tier — 50 lookups/day.