D defs.my
Entry 1 sense Webster, 1913

Basal

/bās'-əl/ · Ba·sal · IPA /[ˈbeɪzəɫ]/
01 a. Relating to, or forming, the base.
  1. 1.
    Relating to, or forming, the base.
Phrases & compounds
Basal cleavage — See under Cleavage.
Basal plane — a plane parallel to the lateral or horizontal axis.