noun
(historical, Roman antiquity) 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.
(zoology) A scute.
(zoology) A shield-like protection, such as the scutum protecting the back of a hard tick (cf. alloscutum, conscutum)
(zoology) One of the two lower valves of the operculum of a barnacle.
(anatomy) The kneecap.
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