orillon Meaning, Definition & Usage

O*ril"lon noun
Etymology
F., lit., a little ear, from oreille an ear, fr. L. oricula, auricula, dim. of auris an ear. See Ear.
Definitions
  1. (Fort.) A semicircular projection made at the shoulder of a bastion for the purpose of covering the retired flank, -- found in old fortresses.

Webster 1913