Annulus

annulus

(structure surrounding a sporangium (or part of it) which shrinks and causes it to rupture for seed dispersal)

annulus

(remnants of a partial veil which leaves a ring on the stem of a mushroom)

annulus

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

annulus

(topological space homeomorphic to the region in a plane between two concentric circles of different radii)

kehä

(ring- or donut-shaped area or structure)

rengas

(ring of fibrous tissue; specifically, such a ring around an opening of a heart valve)

rengas

(ring of light in a celestial body, especially when caused by an annular eclipse)

rengas

(structure surrounding a sporangium (or part of it) which shrinks and causes it to rupture for seed dispersal)

rengas

(remnants of a partial veil which leaves a ring on the stem of a mushroom)

rengasalue

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

rengasalue

(topological space homeomorphic to the region in a plane between two concentric circles of different radii)

rengasmainen väli

(in a well: the space between a pipe or tube and any pipe, tube, casing, or sides of a hole surrounding it)

rengasvyöhyke

(remnants of a partial veil which leaves a ring on the stem of a mushroom)

rinkilä

(ring- or donut-shaped area or structure)

välitila

(in a well: the space between a pipe or tube and any pipe, tube, casing, or sides of a hole surrounding it)