D defs.my
Entry 1 sense Webster, 1913

Interstratification

· In·ter·strat·i·fi·ca·tion · IPA
01 n. Stratification among or between other layers or strata; also, that which is interstratified.
  1. 1.
    Stratification among or between other layers or strata; also, that which is interstratified.(Geol.)