Phase of vibration
Vibration Vi*bra"tion, n. [L. vibratio: cf. F. vibration.] 1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. [1913 Webster]

As a harper lays his open palm Upon his harp, to deaden its vibrations. --Longfellow. [1913 Webster]

2. (Physics) A limited reciprocating motion of a particle of an elastic body or medium in alternately opposite directions from its position of equilibrium, when that equilibrium has been disturbed, as when a stretched cord or other body produces musical notes, or particles of air transmit sounds to the ear. The path of the particle may be in a straight line, in a circular arc, or in any curve whatever. [1913 Webster]

Note: Vibration and oscillation are both used, in mechanics, of the swinging, or rising and falling, motion of a suspended or balanced body; the latter term more appropriately, as signifying such motion produced by gravity, and of any degree of slowness, while the former applies especially to the quick, short motion to and fro which results from elasticity, or the action of molecular forces among the particles of a body when disturbed from their position of rest, as in a spring. [1913 Webster]

{Amplitude of vibration}, the maximum displacement of a vibrating particle or body from its position of rest.

{Phase of vibration}, any part of the path described by a particle or body in making a complete vibration, in distinction from other parts, as while moving from one extreme to the other, or on one side of the line of rest, in distinction from the opposite. Two particles are said to be in the same phase when they are moving in the same direction and with the same velocity, or in corresponding parts of their paths. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Amplitude of vibration — Vibration Vi*bra tion, n. [L. vibratio: cf. F. vibration.] 1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. [1913 Webster] As a harper lays… …   The Collaborative International Dictionary of English

  • Wave of vibration — Wave Wave, n. [From {Wave}, v.; not the same word as OE. wawe, waghe, a wave, which is akin to E. wag to move. [root]138. See {Wave}, v. i.] [1913 Webster] 1. An advancing ridge or swell on the surface of a liquid, as of the sea, resulting from… …   The Collaborative International Dictionary of English

  • Vibration — Vi*bra tion, n. [L. vibratio: cf. F. vibration.] 1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. [1913 Webster] As a harper lays his open… …   The Collaborative International Dictionary of English

  • Vibration white finger — (also known as hand arm vibration syndrome and dead finger[1]) is a secondary form of Raynaud s syndrome, an industrial injury triggered by continuous use of vibrating hand held machinery. Use of the term Vibration White Finger has generally been …   Wikipedia

  • Vibration — For the soul music group, see The Vibrations. For the machining context, see Machining vibrations. For the albums, see Vibrations (Roy Ayers album) and Vibrations (The Three Sounds album). Classical mechanics …   Wikipedia

  • phase velocity — noun : the velocity of a wave motion as determined by the product of the wavelength and frequency called also wave velocity; compare group velocity, particle velocity * * * Physics. the velocity with which a simple harmonic wave is propagated,… …   Useful english dictionary

  • phase velocity — Physics. the velocity with which a simple harmonic wave is propagated, equal to the wavelength divided by the period of vibration. Cf. group velocity, particle velocity. [1930 35] * * * …   Universalium

  • Phase — (f[=a]z), n.; pl. {Phases} (f[=a]z [e^]z). [NL. phasis, Gr. ?, fr. ? to make to appear: cf. F. phase. See {Phenomenon}, {Phantom}, and {Emphasis}.] 1. That which is exhibited to the eye; the appearance which anything manifests, especially any one …   The Collaborative International Dictionary of English

  • phase — 1. A stage in the course of change or development. 2. A homogeneous, physically distinct, and separable portion of a heterogeneous system; e.g., oil, gum, and water are three phases of an emulsion. 3. The time relat …   Medical dictionary

  • Vortex induced vibration — Vortex induced vibrations (VIV) are motions induced on bodies facing an external flow by periodical irregularities on this flow. The classical example is the VIV of an underwater cylinder. You can see how this happens by putting a cylinder into… …   Wikipedia

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