'Basal plane' definitions:

Definition of 'Basal plane'

From: GCIDE
  • Basal \Ba"sal\, a. Relating to, or forming, the base. [1913 Webster]
  • Basal cleavage. See under Cleavage.
  • Basal plane (Crystallog.), a plane parallel to the lateral or horizontal axis. [1913 Webster]