Annulus

"Annulus" in Russian

коле́чко

koléčko

(ring- or donut-shaped area or structure)

кольцо́

kolʹcó

(ring- or donut-shaped area or structure)

кольцо́

kolʹcó

(region in a plane between two concentric circles of different radii)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.