undulation


Also found in: Thesaurus, Medical, Legal, Wikipedia.

un·du·la·tion

 (ŭn′jə-lā′shən, ŭn′dyə-, -də-)
n.
1. A regular rising and falling or movement to alternating sides; movement in waves.
2. A wavelike form, outline, or appearance.
3. One of a series of waves or wavelike segments.

undulation

(ˌʌndjʊˈleɪʃən)
n
1. the act or an instance of undulating
2. any wave or wavelike form, line, etc

un•du•la•tion

(ˌʌn dʒəˈleɪ ʃən, ˌʌn dyə-, -də-)

n.
1. the act of undulating; a wavelike motion.
2. a wavy form or outline.
3. a wavelike bend or curve.
4. Physics.
a. a wave.
b. the motion of waves.
[1640–50]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.undulation - an undulating curveundulation - an undulating curve      
curve, curved shape - the trace of a point whose direction of motion changes
sine curve, sinusoid - the curve of y=sin x
2.undulation - wavelike motionundulation - wavelike motion; a gentle rising and falling in the manner of waves
motion, movement - a natural event that involves a change in the position or location of something
3.undulation - (physics) a movement up and down or back and forthundulation - (physics) a movement up and down or back and forth
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
motion, movement - a natural event that involves a change in the position or location of something
gravitation wave, gravity wave - (physics) a wave that is hypothesized to propagate gravity and to travel at the speed of light
sine wave - a wave whose waveform resembles a sine curve
oscillation, vibration - (physics) a regular periodic variation in value about a mean
fluctuation - a wave motion; "the fluctuations of the sea"
seiche - a wave on the surface of a lake or landlocked bay; caused by atmospheric or seismic disturbances
standing wave, stationary wave - a wave (as a sound wave in a chamber or an electromagnetic wave in a transmission line) in which the ratio of its instantaneous amplitude at one point to that at any other point does not vary with time
traveling wave, travelling wave - a wave in which the medium moves in the direction of propagation of the wave
acoustic wave, sound wave - (acoustics) a wave that transmits sound
wave form, wave shape, waveform - the shape of a wave illustrated graphically by plotting the values of the period quantity against time
blast wave, shock wave - a region of high pressure travelling through a gas at a high velocity; "the explosion created a shock wave"
pulsation, pulse, pulsing, impulse - (electronics) a sharp transient wave in the normal electrical state (or a series of such transients); "the pulsations seemed to be coming from a star"
flapping, fluttering, flap, flutter - the motion made by flapping up and down
Translations

undulation

[ˌʌndjʊˈleɪʃən] Nondulación f

undulation

n (of waves, countryside)Auf und Ab nt; (of snake, single movement)Windung f, → schlängelnde Bewegung; (= curve)Rundung f
References in classic literature ?
And the run of the slight swell was so smooth that it resembled the graceful undulation of a piece of shimmering gray silk shot with gleams of green.
The rhythmical and, if I may so say, well-modulated undulation of the back in our ladies of Circular rank is envied and imitated by the wife of a common Equilateral, who can achieve nothing beyond a mere monotonous swing, like the ticking of a pendulum; and the regular tick of the Equilateral is no less admired and copied by the wife of the progressive and aspiring Isosceles, in the females of whose family no "back-motion" of any kind has become as yet a necessity of life.
I had the curiosity to place a mirror before me; and ere long saw reflected there, a curious involved worming and undulation in the atmosphere over my head.
This surmise was confirmed, as presently,--over the brow of a distant undulation in the road, I descried a farmer's gig driven by another young woman.
The narwhal seemed motionless; perhaps, tired with its day's work, it slept, letting itself float with the undulation of the waves.
The living whale, in his full majesty and significance, is only to be seen at sea in unfathomable waters; and afloat the vast bulk of him is out of sight, like a launched line-of-battle ship; and out of that element it is a thing eternally impossible for mortal man to hoist him bodily into the air, so as to preserve all his mighty swells and undulations.
The abbe, who was quite innocent of Latin, nodded his head, in cadence, at every roll which La Fontaine impressed upon his body, according to the undulations of the dactyls and spondees.
Instead of her usual calico wrapper and knitted shawl she wore her best dress of brown merino, and above her thin strands of hair, which still preserved the tight undulations of the crimping-pins, rose a hard perpendicular bonnet, as to which Ethan's clearest notion was that he had to pay five dollars for it at the Bettsbridge Emporium.
I think the wind shows some symptoms of moderating; the sand-dust is less dense; the undulations of the surface are diminishing, and the sky is growing clearer.
Her head was high in ever alert attention; her long tail moved slowly in sinuous and graceful undulations.
The country is a series of undulations, in themselves perhaps not absolutely great, but, as compared to the plains of St.
It is wonderful with what elaborateness this simple fact is advertised -- this piscine murder will out -- and from my distant perch I distinguish the circling undulations when they are half a dozen rods in diameter.