Protective covering and Testudo

Protective covering noun - A covering that is intend to protect from damage or injury.

Testudo and protective covering are semantically related. In some cases you can replace term "Testudo" with "Protective covering", this terms are similar.

Testudo noun - A movable protective covering that provided protection from above; used by Roman troops when approaching the walls of a besieged fortification.

Protective covering and testudo are semantically related. Sometimes you can use "Protective covering" instead a noun "Testudo".