What is the meaning of Testudo?

A shelter formed by a body of troops holding their shields or targets close together over their heads.

A shelter of similar shape for miners, etc.

The fornix.

A chelys (kind of lyre)

An encysted tumour.

tortoise

turtle

testudo

tortoise, turtle

tortoise-shell

lyre, lute

covering, shed, shelter

1. testudo (shelter formed of the shields of the soldiers held over their heads)

testudo (shelter formed of the shields of the soldiers held over their heads)

arch, vault

having a big forehead

Source: wiktionary.org