A ring-shaped structure or part

A circular area, which can refer to various contexts such as anatomy or geometry

वृत्ताकार क्षेत्र

English Usage: In geometry, an annulus is defined by two concentric circles.

Hindi Usage: ज्यामिति में, एक अंगूठाकार दो समवृत्त वृत्तों द्वारा परिभाषित किया जाता है।