noun which may take the genitive case particle 'no'
doughnut-shaped; toroidal
Describes something shaped like a ring or torus, with a hole in the middle. Used in technical and everyday contexts.
This part is doughnut-shaped.
A doughnut-shaped cloud was floating in the sky.
Compound of ドーナツ (doughnut) and 状 (じょう, '-shaped'). A straightforward modern formation.