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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

vor·tex

Audio Help [vawr-teks] Pronunciation Key

–noun, plural -tex·es, -ti·ces

Audio Help [-tuh-seez] Pronunciation Key.

1.	a whirling mass of water, esp. one in which a force of suction operates, as a whirlpool.

2.	a whirling mass of air, esp. one in the form of a visible column or spiral, as a tornado.

3.	a whirling mass of fire, flame, etc.

4.	a state of affairs likened to a whirlpool for violent activity, irresistible force, etc.

5.	something regarded as drawing into its powerful current everything that surrounds it: the vortex of war.

6.	(in Cartesian philosophy) a rapid rotatory movement of cosmic matter about a center, regarded as accounting for the origin or phenomena of bodies or systems of bodies in space.

[Origin: 1645–55; < L, var. of vertex vertex

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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American Heritage Dictionary - Cite This Source - Share This

vor·tex Audio Help (vôr'těks') Pronunciation Key
n. pl. vor·tex·es or vor·ti·ces (-tĭ-sēz')

A spiral motion of fluid within a limited area, especially a whirling mass of water or air that sucks everything near it toward its center.
A place or situation regarded as drawing into its center all that surrounds it: "As happened with so many theater actors, he was swept up in the vortex of Hollywood" (New York Times).

[Latin vortex, vortic-, variant of vertex, from vertere, to turn; see wer-² in Indo-European roots.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
vortex

1652, "whirlpool, eddying mass," from L. vortex, variant of vertex "an eddy of water, wind, or flame; whirlpool; whirlwind," from stem of vertere "to turn" (see versus). Plural form is vortices. Became prominent in 17c. theories of astrophysics (by Descartes, etc.). In ref. to human affairs, it is attested from 1761. Vorticism as a movement in British arts and literature is attested from 1914, coined by Ezra Pound.

WordNet - Cite This Source - Share This

vortex
noun
1.	the shape of something rotating rapidly [syn: whirl]
2.	a powerful circular current of water (usually the result of conflicting tides) [syn: whirlpool]

The American Heritage Science Dictionary - Cite This Source - Share This

vortex Audio Help (vôr'těks') Pronunciation Key
Plural vortexes or vortices (vôr'tĭ-sēz')
A circular, spiral, or helical motion in a fluid (such as a gas) or the fluid in such a motion. A vortex often forms around areas of low pressure and attracts the fluid (and the objects moving within it) toward its center. Tornados are examples of vortexes; vortexes that form around flying objects are a source of turbulence and drag. See also eddy.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

vor·tex (vôrtks)
n. pl. vor·tex·es or vor·ti·ces (-t-sz)

A spiral motion of fluid within a limited area, especially a whirling mass of water or air that sucks everything near it toward its center.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Merriam-Webster's Medical Dictionary - Cite This Source - Share This

Main Entry: vor·tex
Pronunciation: 'vo(&)r-"teks
Function: transitive verb
: to mix (as the contents of a test tube) by means of a rapid whirling or circular motion <vortex air into a solution> —vor·tex·ing noun

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Vortex

Verse\, n. [OE. vers, AS. fers, L. versus a line in writing, and, in poetry, a verse, from vertere, versum, to turn, to turn round; akin to E. worth to become: cf. F. vers. See Worth to become, and cf. Advertise, Averse, Controversy, Convert, Divers, Invert, Obverse, Prose, Suzerain, Vortex.]

1. A line consisting of a certain number of metrical feet (see Foot, n., 9) disposed according to metrical rules.

Note: Verses are of various kinds, as hexameter, pentameter, tetrameter, etc., according to the number of feet in each. A verse of twelve syllables is called an Alexandrine. Two or more verses form a stanza or strophe.

2. Metrical arrangement and language; that which is composed in metrical form; versification; poetry.

Such prompt eloquence Flowed from their lips in prose or numerous verse. --Milton.

Virtue was taught in verse. --Prior.

Verse embalms virtue. --Donne.

3. A short division of any composition. Specifically: (a) A stanza; a stave; as, a hymn of four verses.

Note: Although this use of verse is common, it is objectionable, because not always distinguishable from the stricter use in the sense of a line. (b) (Script.) One of the short divisions of the chapters in the Old and New Testaments.

Note: The author of the division of the Old Testament into verses is not ascertained. The New Testament was divided into verses by Robert Stephens [or Estienne], a French printer. This arrangement appeared for the first time in an edition printed at Geneva, in 1551. (c) (Mus.) A portion of an anthem to be performed by a single voice to each part.

4. A piece of poetry. "This verse be thine." --Pope.

Blank verse, poetry in which the lines do not end in rhymes.

Heroic verse. See under Heroic.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Vortex

Ver"tex\, n.; pl. Vertexes, L. Vertices. [L. vertex, -icis, a whirl, top of the head, top, summit, from vertere to turn. See Verse, and cf. Vortex.] A turning point; the principal or highest point; top; summit; crown; apex. Specifically: (a) (Anat.) The top, or crown, of the head. (b) (Anat.) The zenith, or the point of the heavens directly overhead. (c) (Math.) The point in any figure opposite to, and farthest from, the base; the terminating point of some particular line or lines in a figure or a curve; the top, or the point opposite the base.

Note: The principal vertex of a conic section is, in the parabola, the vertex of the axis of the curve: in the ellipse, either extremity of either axis, but usually the left-hand vertex of the transverse axis; in the hyperbola, either vertex, but usually the right-hand vertex of the transverse axis.

Vertex of a curve (Math.), the point in which the axis of the curve intersects it.

Vertex of an angle (Math.), the point in which the sides of the angle meet.

Vertex of a solid, or of a surface of revolution (Math.), the point in which the axis pierces the surface.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Vortex

Vor"tex\, n.; pl. E. Vortexes, L. Vortices. [L. vortex, vertex, -icis, fr. vortere, vertere, to turn. See Vertex.]

1. A mass of fluid, especially of a liquid, having a whirling or circular motion tending to form a cavity or vacuum in the center of the circle, and to draw in towards the center bodies subject to its action; the form assumed by a fluid in such motion; a whirlpool; an eddy.

2. (Cartesian System) A supposed collection of particles of very subtile matter, endowed with a rapid rotary motion around an axis which was also the axis of a sun or a planet. Descartes attempted to account for the formation of the universe, and the movements of the bodies composing it, by a theory of vortices.

3. (Zo["o]l.) Any one of numerous species of small Turbellaria belonging to Vortex and allied genera. See Illustration in Appendix.

Vortex atom (Chem.), a hypothetical ring-shaped mass of elementary matter in continuous vortical motion. It is conveniently regarded in certain mathematical speculations as the typical form and structure of the chemical atom.

Vortex wheel, a kind of turbine.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Vortex

Vor"tex\, n.; pl. E. Vortexes, L. Vortices. [L. vortex, vertex, -icis, fr. vortere, vertere, to turn. See Vertex.]

3. (Zo["o]l.) Any one of numerous species of small Turbellaria belonging to Vortex and allied genera. See Illustration in Appendix.

Vortex wheel, a kind of turbine.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Vortex

Vor"ti*cel\, n. [Cf. F. vorticelle. See Vortex.] (Zo["o]l.) A vorticella.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Vortex

Vor`ti*cel"la\, n.; pl. E. Vorticellas, L. Vorticell[ae]. [NL., dim. fr. L. vortex. See Vortex.] (Zo["o]l.) Any one of numerous species of ciliated Infusoria belonging to Vorticella and many other genera of the family Vorticellid[ae]. They have a more or less bell-shaped body with a circle of vibrating cilia around the oral disk. Most of the species have slender, contractile stems, either simple or branched.

Acronym Finder - Cite This Source - Share This

VORTEX

VORTEX: in Acronym Finder

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