Annulus

Meaning space. Used to describe the space between the casing and the cell wall.

annulus

also called annular space. See annular space.

annulus

  1. a toroidal shape
  2. (fungi) remnant of the partial veil that in mature mushrooms surrounds the lower part of the stem

Annulus

• (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...
Found on http://thinkexist.com/dictionary/meaning/annulus/

annulus

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

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 ...
Found on http://www.britannica.com/eb/a-z/a/78

annulus

(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 ...
Found on http://www.britannica.com/eb/a-z/a/78

annulus

noun (Fungi) remnant of the partial veil that in mature mushrooms surrounds the lower part of the stem
Found on https://www.encyclo.co.uk/local/20974

Annulus

[botany] An annulus in botany is a single row of specialized cells on the outer rim of a fern sporangium that serves in spore dispersal. It consists typically of a ring or belt of dead water-filled cells with differentially thickened cell walls that stretches about two-thirds around each sporangium in leptosporangiate ferns. The thinner wal...
Found on http://en.wikipedia.org/wiki/Annulus_(botany)

Annulus

[firestop] The Annulus, or annular space, is the space between a penetrant and whatever surrounds it, such as the sides of an opening or a sleeve, as the case may be. Sometimes an annulus can be `offset`, meaning that the penetrant is not centred. If the firestop was tested only to a perfectly centred opening, an offset may disqualify it fo...
Found on http://en.wikipedia.org/wiki/Annulus_(firestop)

Annulus

[mathematics] In mathematics, an annulus (the Latin word for `little ring`, with plural annuli) is a ring-shaped object, especially a region bounded by two concentric circles. The adjectival form is annular (as in annular eclipse). The open annulus is topologically equivalent to both the open cylinder {math|S1 × (0,1)} and the punctured pl...
Found on http://en.wikipedia.org/wiki/Annulus_(mathematics)

Annulus

[mycology] An annulus is the ring like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remaining part of the partial veil, after it has ruptured to expose the gills or other spore-producing surface. An annulus may be thick and membranous, or it may be cobweb-like. An annulus may be persistent ...
Found on http://en.wikipedia.org/wiki/Annulus_(mycology)

Annulus

[oil well] The annulus of an oil well is any void between any piping, tubing or casing and the piping, tubing, or casing immediately surrounding it. It is named after the corresponding geometric concept. The presence of an annulus gives the ability to circulate fluid in the well, provided that excess drill cuttings have not accumulated in t...
Found on http://en.wikipedia.org/wiki/Annulus_(oil_well)

Annulus

[zoology] In zoology, an annulus is an external circular ring. Annuli are commonly found in segmented animals such as earthworms and leeches. The bodies of these annelids are externally marked by annuli that are arranged in series with each other. An annulus may also be an indication of growth in certain species, similar to dendrochronology...
Found on http://en.wikipedia.org/wiki/Annulus_(zoology)

Annulus

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...
Found on http://www.encyclo.co.uk/webster/A/88

Annulus

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.
Found on http://www.encyclo.co.uk/local/21804

annulus

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

Annulus

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

Annulus

a node near the apex of the ramicaul and is the origination of the spathe or sheath that gives rise to the inflorescence
Found on http://orchidfetish.com/glossary.html

Annulus

A ring like structure, or any body part that is shaped like a ring. E.g. inter-vertebral discs consist of a tough outer ring of fibrous material (the annulus)
Found on http://www.dwp.gov.uk/medical/med_conditions/glossary.html

Annulus

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.
Found on http://www.encyclo.co.uk/local/22034

annulus

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...
Found on http://www.wordinfo.info/words/index/info/view_unit/137/

Annulus

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...
Found on http://www.medterms.com/script/main/art.asp?articlekey=19227

annulus

diminutive of Latin anus = ring, hence little ring.
Found on http://www.anatomy.usyd.edu.au/glossary/glossary.cgi?

Annulus

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.
Found on http://www.probertencyclopaedia.com/browse/FA.HTM
No exact match found