Entry 2 senses · 2 variants Webster, 1913 Stratigraphic /strătˌ-əg-răf'-ĭk/ · Strat·i·graph·ic · IPA /ˌstɹætɪˈɡɹæfɪk/ a. a. 01 a. Pertaining to, or depended upon, the order or arrangement of strata; as, stratigraphical evidence. 1. Pertaining to, or depended upon, the order or arrangement of strata; as, stratigraphical evidence.(Geol.) 02 a. See Stratographic. 1. See Stratographic.(Mil.) See: Stratographic