VS.

Annular vs. Annulus

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Annularadjective

Pertaining to, or having the form of, a ring; ring-shaped; in the shape of an annulus.

‘annular fiber’;

Annulusnoun

A ring- or donut-shaped area or structure.

Annularadjective

Banded or marked with circles.

Annulusnoun

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

Annularadjective

Pertaining to, or having the form of, a ring; forming a ring; ringed; ring-shaped; as, annular fibers.

Annulusnoun

(topology) Any topological space homeomorphic to the region in a plane between two concentric circles of different radius.

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Annularadjective

Banded or marked with circles.

Annulusnoun

(astronomy) The ring of the sun not covered by the moon in an annular solar eclipse.

Annularadjective

shaped like a ring

Annulusnoun

(botany) Structure in a fern that consists of differentially thick-walled cells on a sporangium that bend and distort as a result of drying.

Annulusnoun

(mycology) The membranous remnants of a partial veil which leaves a ring on the stem of a mushroom.

Annulusnoun

(oil and gas production) The space contained between the centre well bore and any external tubing. Sometimes used for separated gas flow.

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Annulusnoun

A ring; a ringlike part or space.

Annulusnoun

A space contained between the circumferences of two circles, one within the other.

Annulusnoun

Ring-shaped structures or markings, found in, or upon, various animals.

Annulusnoun

a toroidal shape;

‘a ring of ships in the harbor’; ‘a halo of smoke’;

Annulusnoun

(Fungi) remnant of the partial veil that in mature mushrooms surrounds the lower part of the stem

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