undulation


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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 ?
The wide bosom of the Tappan Zee lay motionless and glassy, excepting that here and there a gentle undulation waved and prolonged the blue shallow of the distant mountain.
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.
As he sat on my sofa, with his long knees drawn up under his coffee-cup, his hat and gloves upon the ground close to him, his spoon going softly round and round, his shadowless red eyes, which looked as if they had scorched their lashes off, turned towards me without looking at me, the disagreeable dints I have formerly described in his nostrils coming and going with his breath, and a snaky undulation pervading his frame from his chin to his boots, I decided in my own mind that I disliked him intensely.
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 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.
The narwhal seemed motionless; perhaps, tired with its day's work, it slept, letting itself float with the undulation of the waves.
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.
It seems as if the law of the intellect resembled that law of nature by which we now inspire, now expire the breath; by which the heart now draws in, then hurls out the blood,--the law of undulation.
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 comely plumpness of her face was matched by the comely plumpness of her figure; it glided smoothly over the ground; it flowed in sedate undulations when she walked.
Printed in full, it would make ten pages of this book; but the core of it is in the last sentence: "The method of, and apparatus for, transmitting vocal or other sounds telegraphically, by causing electrical undulations, similar in form to the vibrations of the air accompanying the said vocal or other sounds.
She ran toward a piece of water, shook one of her legs lightly to cast off her shoe, and began to dabble her foot, white as alabaster, in the current, admiring, perhaps, the undulations she thus produced upon the surface of the water.