Lewis & Short

dīvīsūra, ae, f. [divido].
Prop.,

  1. I. a division.
    Concr., the fork of a tree, Plin. 16, 30, 53, § 122.
    In plur., Plin. 25, 13, 106, § 167; 25, 5, 21, § 48.
  2. II. A cut, incision, e. g. in bleeding a person, Cael. Aur. Acut. 3, 4, 27; id. Tard. 2, 12, 146 sq.; in trees: laterum, Pall. 11, 12, 7.