D defs.my
Entry 1 sense Webster, 1913

Graptolitic

· Grap·to·lit·ic · IPA
01 a. Of or pertaining to graptolites; containing graptolites; as, a graptolitic slate.
  1. 1.
    Of or pertaining to graptolites; containing graptolites; as, a graptolitic slate.