
1) Anchor ring 2) Animal anatomy 3) Anulus 4) Doughnut 5) Elementary geometry 6) Growth ring 7) Halo 8) Passive fire protection 9) Ring 10) Toroid 11) Tree ring
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https://www.crosswordclues.com/clue/annulus

1) Anulus 2) Doughnut 3) Ring
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https://www.crosswordclues.com/clue/annulus

- a toroidal shape
- (fungi) remnant of the partial veil that in mature mushrooms surrounds the lower part of the stem
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a node near the apex of the ramicaul and is the origination of the spathe or sheath that gives rise to the inflorescence
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http://orchidfetish.com/glossary.html

A membraneous skirt surrounding the stipe of a hymenomycete or gasteromycete. (pl. annuli)
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http://ppathw3.cals.cornell.edu/glossary/Defs_A.htm

• (n.) A ring; a ringlike part or space. • (n.) A space contained between the circumferences of two circles, one within the other. • (n.) Ring-shaped structures or markings, found in, or upon, various animals. • (n.) The solid formed by a circle revolving around a line which is the plane of the circle but does not cut it.Annulus...
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http://thinkexist.com/dictionary/meaning/annulus/

(from the article `Apoda`) Caecilians have long, limbless, cylindrical bodies that abruptly end behind the vent or short tail. Annuli (primary grooves in the skin) encircle the ...
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http://www.britannica.com/eb/a-z/a/78

(from the article `dinoflagellate`) The dinoflagellate cell is banded by a median or coiled groove, the annulus, which contains a flagellum. A longitudinal groove, the sulcus, extends ...
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http://www.britannica.com/eb/a-z/a/78

The region between the smaller and the larger of two circles that share a common center.
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http://www.daviddarling.info/encyclopedia/A/annulus.html

Ring like structure, adj. Annulate. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973

(an´u-lәs) pl. an´nuli alternate spelling of anulus.
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http://www.encyclo.co.uk/local/21001

A mark or ring that forms annually on the otoliths, scales, and other bones of fish, that correspond to the annual period of slow growth that fish go through. Annuli are used by fish managers to determine age and growth of fish.
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http://www.encyclo.co.uk/local/21804

A row of thick-walled cells in the walls of a sporangium that shrink or expand with changes in moisture to cause rupture of the sporangium and release of the spores.
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http://www.encyclo.co.uk/local/22034

Meaning space. Used to describe the space between the casing and the cell wall.
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http://www.encyclo.co.uk/visitor-contributions.php

Ring-like structure, adj . annulate.
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http://www.encyclo.co.uk/visitor-contributions.php

also called annular space. See annular space.
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http://www.encyclo.co.uk/visitor-contributions.php
An'nu·lus noun ;
plural Annuli [ Latin ]
1. A ring; a ringlike part or space.
2. (Geom.) (a) A space contained between the circumferences of two circles, one within the other.
(b) The solid formed by a circle revolving around a line which i...
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http://www.encyclo.co.uk/webster/A/88

Annulus: A ringlike structure, or any body part that is shaped like a ring. Applied to many small ring-shaped structures. The base of a heart valve that supports the valve's leaflets is called the annulus. A ring-shaped pancreas that encircles the duodenum is an annular pancreas. 'Annulus' is a misspelling of the Latin 'anulus' (a little ring), the...
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http://www.medterms.com/script/main/art.asp?articlekey=19227

a node near the apex of the ramicaul and is the origination of the spathe or sheath that gives rise to the inflorescence
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http://www.orchidspecies.com/glossary.htm

In firearms, an annulus is a recessed ring around the primer cap in the base of a cartridge case. The annulus is sometimes coloured to assist in identifying different types of ammunition.
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http://www.probertencyclopaedia.com/browse/FA.HTM

annulus (s), annuluses, annuli (pl) A ringlike structure, or any body part that is shaped like a ring; which is applied to many small ring-shaped structures; such as, parts in a plant or animal, for example, a growth ring on fish scales. The base of a heart valve that supports the valve's leaflets is called the annulus and a ring-shaped pa...
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http://www.wordinfo.info/words/index/info/view_unit/137/

A ring-like part or, the orifice of a hollow die, through which extruded metal flows from the press.
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https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/
noun (Fungi) remnant of the partial veil that in mature mushrooms surrounds the lower part of the stem
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https://www.encyclo.co.uk/local/20974

diminutive of Latin anus = ring, hence little ring.
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https://www.encyclo.co.uk/local/21450

a ring; a ringlike part, band, or space. · the space between two concentric circles on a plane. · the veil remnant on a mushroom stalk. See illus. under · a growth ring, as on the cross section of a tree trunk, that can be used to estimate age.
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https://www.infoplease.com/dictionary/annulus
No exact match found.