D defs.my
Entry 1 sense Webster, 1913

Archæolithic

/(är`kē̇*ō̇*lĭth"ĭk)/ · Ar·chæ·o·lith·ic · IPA
01 a. Of or pertaining to the earliest Stone age; -- applied to a prehistoric period preceding the Paleolithic age.
  1. 1.
    Of or pertaining to the earliest Stone age; -- applied to a prehistoric period preceding the Paleolithic age.(Archæol.)