A tourelle is a type of turret, sometimes used in Chateauesque architecture.
A general dictionary defines tourelle as "a small tower (as one springing from corbeling or pier)".
[1] An architectural dictionary defines it more specifically as a "corbelled turret, circular in plan, cone-roofed, sometimes containing a circular stair, set at the angle of a tower or wall at high level, and common in Scottish-Baronial architecture".
[2] A distinction may be made between turrets that are atop corner towers going all the way down to the ground, vs. turrets that project out and up.
This architectural element–related article is a stub.