phase

Definitions

  • DIFFERENT PHASES OF VENUS
    DIFFERENT PHASES OF VENUS
  • WordNet 3.6
    • v phase adjust so as to be in a synchronized condition "he phased the intake with the output of the machine"
    • v phase arrange in phases or stages "phase a withdrawal"
    • n phase (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun) "the full phase of the moon"
    • n phase (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary "the reaction occurs in the liquid phase of the system"
    • n phase a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
    • n phase any distinct time period in a sequence of events "we are in a transitional stage in which many former ideas must be revised or rejected"
    • ***
Webster's Revised Unabridged Dictionary
    • Phase (Phys. Chem) A homogenous, physically distinct portion of matter in a system not homogeneous; as, the three phases, ice, water, and aqueous vapor. A phase may be either a single chemical substance or a mixture, as of gases.
    • Phase (Astron) A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form of enlightened disk; as, the phases of the moon or planets. See Illust. under Moon.
    • Phase Any appearance or aspect of an object of mental apprehension or view; as, the problem has many phases .
    • Phase (Physics) Any one point or portion in a recurring series of changes, as in the changes of motion of one of the particles constituting a wave or vibration; one portion of a series of such changes, in distinction from a contrasted portion, as the portion on one side of a position of equilibrium, in contrast with that on the opposite side.
    • Phase (Zoöl) In certain birds and mammals, one of two or more color variations characteristic of the species, but independent of the ordinary seasonal and sexual differences, and often also of age. Some of the herons which appear in white and colored phases, and certain squirrels which are sometimes uniformly blackish instead of the usual coloration, furnish examples. Color phases occur also in other animals, notably in butterflies.
    • Phase That which is exhibited to the eye; the appearance which anything manifests, especially any one among different and varying appearances of the same object.
    • Phase (Elec) The relation at any instant of a periodically varying electric magnitude, as electro-motive force, a current, etc., to its initial value as expressed in factorial parts of the complete cycle. It is usually expressed in angular measure, the cycle beb four right angles, or 360°. Such periodic variations are generally well represented by sine curves; and phase relations are shown by the relative positions of the crests and hollows of such curves. Magnitudes which have the same phase are said to be in phase.
    • Phase (Physics) the relation at any instant of any cyclically varying physical quantity, such as voltage in an A.C. circuit, an electromagnetic wave, a sound wave, or a rotating object, to its initial value as expressed as a fractional part of the complete cycle. It is usually expressed in angular measure, the complete cycle being 360°.
    • v. t Phase fāz To disturb the composure of; to disconcert; to nonplus; -- an older spelling, now replaced by faze.
    • ***
Century Dictionary and Cyclopedia
    • n phase Aspect, appearance, or guise; the aspect or presentation in which a thing of varying modes or conditions manifests itself to the eye or the mind, or the stage in its history or development which it reaches at a particular time; an era: as, the war entered on a new phase; the varying phases of life.
    • n phase In astronomy, the particular appearance presented by the moon or by a planet at a given time; one of the recurring appearances of the moon or a planet in respect to the apparent form of the illuminated part of its disk.
    • n phase In physics, a particular value, especially at the zero of time, of the uniformly varying angular quantity upon which a simple harmonic motion, or a simple element of a harmonic motion, depends. The position of the moving object may be expressed by means of a sum or sums of terms of the form A sin (bt + c), where t is the time. The value of bt + c, at any instant, especially when t = 0, is the phase. Two simple harmonic motions A sin (bt + c) and M sin (bt + n) are said to differ in phase, meaning that there is a constant difference in their contemporaneous phases.
    • phase A bad spelling of faze.
    • n phase In statistical mechanics, the condition of a system with respect to configuration and velocity.
    • n phase In mathematics, the angle made with the positive ray of the x-axis by the radius vector from the origin to the point representing a complex number, taken between O and 2 π or between — π and + π; the amplitude or argument a in the trigonometric form of a complex number, ρ (cos α + i sin α).
    • n phase In electricity, the time or angle at which an electric wave reaches a certain relative value, as the maximum or zero.
    • n phase In physical chemistry, one of the different homogeneous substances of which a heterogeneous thermodynamic system consists. If ice and salt are mixed there soon exist three homogeneous substances in the system, namely, brine, ice, and solid salt. All the ice existing at a given moment is one phase, all the solid salt existing at that moment is a second phase, and the brine produced up to that moment is a third phase.
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Chambers's Twentieth Century Dictionary
    • n Phase fāz aspect, appearance, at any stage: an era: the form in which an object or a question presents itself to the mind: the appearance at a given time of the illuminated surface exhibited by a planet—also Phā′sis
    • ***

Quotations

  • Richard Halverson
    Richard Halverson
    “Christianity is either relevant all the time or useless anytime. It is not just a phase of life; it is life itself.”
  • Camille Paglia
    Camille%20Paglia
    “All objects, all phases of culture are alive. They have voices. They speak of their history and interrelatedness. And they are all talking at once!”
  • James Allen
    James%20Allen
    “Harmony is one phase of the law whose spiritual expression is love.”
  • Anita Brookner
    Anita%20Brookner
    “It will be a pity if women in the more conventional mould are to be phased out, for there will never be anyone to go home to.”

Etymology

Webster's Revised Unabridged Dictionary
NL. phasis, Gr. , fr. to make to appear: cf. F. phase,. See Phenomenon Phantom, and Emphasis
Chambers's Twentieth Century Dictionary
Gr. phasisphaein, to shine.

Usage

In literature:

Another phase of their life in Topeka added its humiliation.
"The Wind Before the Dawn" by Dell H. Munger
All these elements were very near the surface in former phases of the Revolution.
"Lectures on the French Revolution" by John Emerich Edward Dalberg-Acton
Never again will he attempt that phase of life.
"The Struggles of Brown, Jones, and Robinson" by Anthony Trollope
Perhaps I should be happy, also, since this particular phase of the problem doesn't concern me.
"Master of the Vineyard" by Myrtle Reed
A brief account of this phase of geology is given in Chapter II.
"The Economic Aspect of Geology" by C. K. Leith
The popularity of this phase of opinion was voiced in the following interview with Hon.
"Shadow and Light" by Mifflin Wistar Gibbs
Nor has anything new or instructive developed from what is thus far known of other phases of the battle.
"The Story of the Great War, Volume I (of 8)" by Various
Long before the second phase of the evolution of man had been completed the third phase had begun, that of the conflict of man with man.
"Man And His Ancestor" by Charles Morris
The total phase, or "totality," as it is also called, lasts for different lengths of time in different eclipses.
"Astronomy of To-day" by Cecil G. Dolmage
That, if the earth revolved round the sun, Mercury and Venus ought to show phases like the moon.
"Pioneers of Science" by Oliver Lodge
No phase of life has been exempt from the power of its magic.
"The Next Step" by Scott Nearing
Now, of this high phase of education, Khalid was thoroughly immune.
"The Book of Khalid" by Ameen Rihani
He participated in every phase of school life and was devoted to athletics.
"War Letters of a Public-School Boy" by Henry Paul Mainwaring Jones
At the close of the first phase of the battle the number of prisoners in the hands of the British had risen to 7,500.
"The Story of the Great War, Volume V (of 8)"
The second phase of the offensive in the Arras region was especially notable for the victories won by the British in the air.
"The Story of the Great War, Volume VI (of VIII)" by Various
For this phase, Romanes has coined the term physiological isolation.
"The Meaning of Evolution" by Samuel Christian Schmucker
But look at Caste in another way, in its power in the commonplace phases of life.
"Things as They Are" by Amy Wilson-Carmichael
Social culture contains the formal phase, moral culture the real phase, of the practical mind.
"Pedagogics as a System" by Karl Rosenkranz
In order to deal fully with this subject it is necessary to discuss another important phase in the worship of sex.
"The Sex Worship and Symbolism of Primitive Races" by Sanger Brown, II
And each of the two methods shows itself in many different phases.
"Materials and Methods of Fiction" by Clayton Hamilton
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In poetry:

Yet I trust at each new phase,
Conscience chose the right always,
Taught of Thee through prayer and praise,
Lord! Thou knowest.
"Thou Knowest" by Martin Farquhar Tupper
And, moved thro' life of lower phase,
Result in man, be born and think,
And act and love, a closer link
Betwixt us and the crowning race
"In Memoriam A. H. H.: 131" by Alfred Lord Tennyson
And, moved thro' life of lower phase,
Result in man, be born and think,
And act and love, a closer link
Betwixt us and the crowning race
"In Memoriam 131: O Living Will That Shalt Endure" by Alfred Lord Tennyson
"A thoughtful Spirit taught me soon
That we must long till life be done;
That every phase of earthly joy
Will always fade and always cloy--
"How beautiful the Earth is still" by Emily Jane Bronte
Then why, my friend, once more I ask of thee,
Why shows thy face so much unrest and pain?
What painful phase of life dost thou still see?
What sad, sad woe, doth in thy heart remain?
"The Teacher" by Thomas Frederick Young
- "But my loves go further—to Story, and Dance, and Hymn,
The lover of all in a sun-sweep is fool to whim -
Is swayed like a river-weed as the ripples run!"
- "Nay, wight, thou sway'st not. These are but phases of one;
"Rome: The Vatican-Sala Delle Muse." by Thomas Hardy

In news:

There are several phases that one goes through when learning to program a computer.
Intel will phase out its Verified by Intel initiative, designed to ensure standardization and interchangeability of notebook parts across suppliers, by the middle of 2008, the company said Oct 11.
Working to phase out use of year-round calendars.
Star striker Cristiano Ronaldo stressed that Real Madrid's 2-1 loss at Borussia Dortmund on Wednesday night was no big deal, Los Blancos remain well-positioned to qualify for the second phase of the UEFA Champions League.
The circa EUR 30 million investment will cover the rebuild of all of the main phases of waste water treatment.
Although there are several effective slalom styles and methods employed among top water skiers, one factor that is almost collectively shared is the low positioning of the handle during the pulling phase.
Apartments Phase I units: 203.
Officials broke ground Jan 5 on the $28.6 million first phase of improvements to the North Embarcadero waterfront district in downtown San Diego.
Erbitux Phase III Metastatic Colorectal Cancer Study Meets Primary Endpoint .
ImClone Systems and Bristol-Myers Squibb reported that a Phase III study of Erbitux in metastatic colorectal cancer (mCRC) showed positive results.
Place your order for phase III of the Pathway to Patient Safety.
Finding clusters in the early phases of construction has been challenging because they are rare, dim, and widely scattered across the sky.
For those of you doing anything according to the phases of the moon and signs of the zodiac, here's the information for the week ahead.
Parents of finicky eaters need to know if it's just a phase, or a serious feeding issue.
Garland's Firewheel Town Center to almost double its apartments with a new phase to open in 2013.
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In science:

From a phase measurement one gets phase statistics, that is, a probability density f defined on the phase interval, say, [0, 2π).
The phase representation of covariant phase observables
The mean-field solutions (47) and (48) are degenerate with respect to two continuous phase variables, that is, the global phase φ and the relative phase χm = φ−m − φm (m = 1, 2) between the two nonvanishing amplitudes ζ±m .
Theory of spin-2 Bose-Einstein condensates: spin-correlations, magnetic response, and excitation spectra
For spin-S , there are (2S+1) such phases, and various phase transitions between them (some phase diagrams are shown in Fig 1).
Permutation-Symmetric Multicritical Points in Random Antiferromagnetic Spin Chains
In both cases we find that the system supports only two phases, which are the Random Singlet phase and the Large Spin phase.
Random Antiferromagnetic Spin-1/2 Chains with Competing Interactions
We find that the system supports two phases, the random singlet phase and the large spin phase.
Random Antiferromagnetic Spin-1/2 Chains with Competing Interactions
By introducing this simple principle into the model, we observe a wide range of distributions: from an exponential phase to a condensate phase, with a power-law distribution appearing in the transition region between the two phases.
Stochastic Maps, Wealth Distribution in Random Asset Exchange Models and the Marginal Utility of Relative Wealth
This is similar to the Susskind-Glogower exponential phase operator ˆE , having as eigenstates the coherent phase states (3.20) on the unit disk and the phase states (3.14) on the unit circle.
Generalized Hypergeometric Coherent States
It is then justified to p ˆEq and their eigenstates, the consider the operators GHS on the unit disk and unit circle, as generalizations of the Susskind-Glogower exponential phase operator ˆE and its eigenstates, the coherent phase states and the phase states, respectively.
Generalized Hypergeometric Coherent States
Note that the dependence of the phase distributions on the phases is through the phase difference (θ − ϕ) only, where ϕ is the phase of the complex variable (z = |z |eiϕ ) defining the GH(C)S.
Generalized Hypergeometric Coherent States
Our understanding on phases and phase transitions in 4H e system can shed considerably lights on the phase and phase transitions in BLQH with the pressure playing the role of the distance.
Mutual Composite Fermion and composite Boson approaches to balanced and imbalanced bilayer quantum Hall system: an electronic analogy of the Helium 4 system
Therefore, we put a question mark for the RS phase and QG phase in our phase diagram Fig. 11.
Uniform Magnetic Order in a Ferromagnetic-Antiferromagnetic Random Alternating Quantum Spin Chain
From this differential equation, all the phases are asymptotically a function of the ratio n θ if the phase difference is from 0 to π , while they are function of nθ if the phase difference is from −π to 0.
Singular Gauge Transformation in Non-Commutative U(2) Gauge Theory
In the U (2) case, we have four phases, one of which φ is the U (1) phase, but the remaining three are SU (2) phases.
Singular Gauge Transformation in Non-Commutative U(2) Gauge Theory
It would also be interesting to explore the possibility of a phase transition near K ≈ K0 = pσ/4 ≈ 0.35 between the fully random phase and the critical phase described by the linear theory; this is currently under investigation.
Collective synchronization in spatially extended systems of coupled oscillators with random frequencies
In the case of phase synchronization, a similar situation has been found for d = 3 and d = 4, where phases are correlated but the phase order parameter ∆ remains zero.
Collective synchronization in spatially extended systems of coupled oscillators with random frequencies
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