annulus

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Annulus (mathematics) - Wikipedia
In mathematics, an annulus ( pl. : annuli or annuluses) is the region between two concentric circles. Informally, it is shaped like a ring or a hardware ... en.wikipedia.org
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Annulus - Wikipedia
Annulus (or anulus) or annular indicates a ring- or donut-shaped area or structure. It may refer to: Contents. 1 Human anatomy; 2 Biology; 3 Other ... en.wikipedia.org
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Annulus - Math is Fun
An annulus is a flat shape like a ring. Its edges are two circles that have the same center. Washers (various) The face of a metal washer is an annulus. www.mathsisfun.com
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annulus
‖ annulus (ˈænjʊləs) Pl. -i. [L., erroneous mediæval spelling of ānulus a ring, dim. of rare ānus a rounding, a circular form (see Lewis and Short).] 1. A ring, or ring-like body (in various technical applications).1563 J. Shute Archit. C j a, Thre of them ye shal geue to Echinus..the fourth part ge... Oxford English Dictionary
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ANNULUS Definition & Meaning - Merriam-Webster
1. ring 2. a part, structure, or marking resembling a ring: such as a : a line of cells around a fern sporangium that ruptures the sporangium by contracting. www.merriam-webster.com
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Annulus -- from Wolfram MathWorld
An annulus is a region lying between two concentric circles. The area of the annulus formed by two circles of radii a and b (with a>b ) is A_(annulus)=pi(a^2-b mathworld.wolfram.com
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Annulus Definition - BYJU'S
An annulus is a shape made out of two circles. An annulus is a plane figure formed between two concentric circles (the circles sharing a common center). byjus.com
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ANNULUS Definition & Meaning - Dictionary.com
a ring; a ringlike part, band, or space. Geometry., the space between two concentric circles on a plane. the veil remnant on a mushroom stalk. www.dictionary.com
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Medical Definition of Annulus - RxList
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. www.rxlist.com
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Area of an Annulus - YouTube
Watch more videos on http://www.brightstorm.com/math/geometry SUBSCRIBE FOR All OUR VIDEOS! www.youtube.com
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The Mitral Annulus Disjunction Arrhythmic Syndrome:
The authors included 116 patients with MAD (age 49 ± 15 years; 60% female). Palpitations were the most common symptom (71%). Severe arrhythmic events occurred in 14 (12%) patients. Longitudinal MAD distance measured by CMR was 3.0 mm (interquartile range [IQR]: 0 to 7.0 mm) and circumferential MAD was 150° (IQR: 90° to 210°).
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Annulus (zoology)
In zoology, an annulus is an external circular ring. Annuli are commonly found in segmented animals such as earthworms and leeches. An annulus may also be an indication of growth in certain species, similar to dendrochronology. wikipedia.org
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Complex analysis query regarding annulus We say that annulus is given by say $1<z<2$. Is it possible to have an annulus inside an annulus? Like in a domain $0\leqslant|z|\leqslant5$ can we have an annular region like ...
Yes it still is an annulus. As when you take the annulus $3<z<4$ from the given domain ,there is still the region of $0\leq|z|\leq3$ and $4\leq|z|\leq5$.
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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 Annulus, a term used within a firestop patent Annulus, as used in UL System C-AJ-1557 Firestop System, Configuration A Passive fire protection Firestops wikipedia.org
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Annulus (mycology)
An annulus is the ring-like or collar-like structure sometimes found on the stipe of some species of mushrooms. It can also be called a ring which is what the Latin word annulus directly translates as. wikipedia.org
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