noun, noun which may take the genitive case particle 'no'
shield-shaped; scutiform
Describes something shaped like a shield. Often used in technical or descriptive contexts, such as biology or heraldry.
その葉は盾状で、縁がぎざぎざしている。
The leaf is shield-shaped with serrated edges.
盾状の紋章が壁に飾られていた。
A shield-shaped coat of arms was displayed on the wall.
盾 is the noun 'shield'; 盾状 is the adjectival form meaning 'shield-shaped'.
Compound of 盾 (shield) and 状 (shape, form).