obrotowymi
Obrotowymi refers to a type of mechanism found in medieval and early modern European fortifications, particularly in Poland and other Eastern Slavic states. Literally meaning "turntable" in Polish, the obrotowymi mechanism utilized a rotating platform to direct firepower against attackers.
These mechanisms were typically large, circular castles or wooden platforms that sat atop a tower or wall.
The obrotowymi is also found in some historical records as a type of defensive tower or bastion.
While neither proved decisive in their time, these types of defenses continue to have value as points