Steatite and Testudo

Steatite noun - A soft heavy compact variety of talc having a soapy feel; used to make hearths and tabletops and ornaments.

Testudo and steatite are semantically related. In some cases you can use "Testudo" instead a noun "Steatite".

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

Steatite and testudo are semantically related. You can use "Steatite" instead a noun "Testudo".