redan Meaning, Definition & Usage

Re*dan" noun
Etymology
F., for OF. redent a double notching or jagging, as in the teeth of a saw, fr. L. pref. re- re- + dens, dentis, a tooth. Cf. Redented.
Definitions
  1. (Fort.) A work having two parapets whose faces unite so as to form a salient angle toward the enemy.
  2. A step or vertical offset in a wall on uneven ground, to keep the parts level.

Webster 1913