D defs.my
Entry 1 sense Webster, 1913

Zechstein

· Zech·stein · IPA
01 n. The upper division of the Permian (Dyas) of Europe. The prevailing rock is a magnesian limestone.
  1. 1.
    The upper division of the Permian (Dyas) of Europe. The prevailing rock is a magnesian limestone.(Geol.)