scutum
/ˈskjuːtəm/noun
Middle School
1
An oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; carried chiefly by the heavily armed infantry of the Roman army.
2
A scute.
3
A shield-like protection, such as the scutum protecting the back of a hard tick (cf. alloscutum, conscutum).
4
One of the two lower valves of the operculum of a barnacle.
5
The kneecap.