資料來源 : Webster's Revised Unabridged Dictionary (1913)

Dolerite \Dol"er*ite\, n. [Gr. ? deceptive, because easily
   confounded with diorite.] (Petrography)
      (a) A dark, crystalline, igneous rock, chiefly pyroxene
          with labradorite.
      (b) Coarse-grained basalt.
      (c) Diabase.
      (d) Any dark, igneous rock composed chiefly of silicates
          of iron and magnesium with some feldspar. --
          {Dol`er*it"ic}, a.

Doleritic \Dol`er*it"ic\, a.
   Of the nature of dolerite; as, much lava is doleritic lava.
   --Dana.