• WordNet 3.6
    • adj undulate having a wavy margin and rippled surface
    • v undulate increase and decrease in volume or pitch, as if in waves "The singer's voice undulated"
    • v undulate move in a wavy pattern or with a rising and falling motion "The curtains undulated","the waves rolled towards the beach"
    • v undulate stir up (water) so as to form ripples
    • v undulate occur in soft rounded shapes "The hills rolled past"
    • ***
Webster's Revised Unabridged Dictionary
    • a Undulate Same as Undulated.
    • v. t Undulate To cause to move backward and forward, or up and down, in undulations or waves; to cause to vibrate. "Breath vocalized, that is, vibrated and undulated ."
    • v. i Undulate To move in, or have, undulations or waves; to vibrate; to wave; as, undulating air.
    • ***
Century Dictionary and Cyclopedia
    • undulate Wavy; having a waved surface. In botany, wavy; repand; bending, or having a margin which bends, slightly inward and outward: as, an undulate leaf; undulate striæ. Also undate, undulated. Compare sinuate , In zoology, marked with wavy lines. Specifically, in entomology; Wavy; forming a series of gentle curves which meet in reversed curves: as, an undulate line or margin. Rising and falling in gentle curves: said of surfaces and also of margins. Marked with parallel wavy lines.
    • undulate To have a wavy motion; rise and fall in waves; move in waves.
    • undulate Synonyms Waver, etc. See fluctuate.
    • undulate To cause to wave, or move in waves; cause to vibrate.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Undulate un′dū-lāt to wave, or to move like waves: to cause to vibrate
    • v.i Undulate to wave: to vibrate
    • adj Undulate wavy
    • ***


Webster's Revised Unabridged Dictionary
L. undulatus, undulated, wavy, a dim. from unda, a wave; cf. AS. , Icel. unnr,; perhaps akin to E. water,. Cf. Abound Inundate Redound Surround


In literature:

Her figure was slight and undulating, and she was always exquisitely dressed.
"Endymion" by Benjamin Disraeli
Within the range of these numerous acres the declining spurs of the hills continued to undulate and subside.
"A Passionate Pilgrim" by Henry James
The field, with slight undulations, slopes pretty directly down.
"Passages From The American Notebooks, Volume 1" by Nathaniel Hawthorne
Miss Yolland came undulating.
"Mary Marston" by George MacDonald
Then, suddenly there appears an enormous stretch of slightly undulating country to the south and west.
"Normandy, Complete" by Gordon Home
Wooded slopes undulate upon all sides.
"Lourdes From the "Three Cities"" by Emile Zola
Some of the undulations reached a considerable height, the highest, Mamquady, being over two thousand feet.
"By Sheer Pluck" by G. A. Henty
Then, suddenly there appears an enormous stretch of slightly undulating country to the south and west.
"Normandy, Part 2" by Gordon Home
And when you dance it seems as though the floor swayed and undulated to the rhythm of your footsteps.
"Tales of Two Countries" by Alexander Kielland
A broad and slightly undulating valley lay between both.
"Charles O'Malley, The Irish Dragoon, Volume 2 (of 2)" by Charles Lever

In poetry:

The early dew blooms all the sod,
The fences undulate
In the weird light, like living lines
That swell with boding hate.
"A Ballad Of 1812" by Sarah Anne Curzon
Hard by, a heath of Lauderdale,
A verdant sweep of broken lea,
Rolls into knolls from out the vale,
And undulates and swells a sea
Of billowy emerald waves.
"My Delight" by Samuel Alfred Beadle
Whither away on such winged undulations,
Breasting the winds and the tempests wild glee,
Lifting your form in graceful vibrations
As onward you move like a billowy sea?
"The Lone Bird" by Jared Barhite
O you that dwell 'mid farm and fold,
Yet keep so quick undulled a heart,
I send you here that book of gold,
So loved so long;
The fairest art,
The sweetest English song.
""Tennyson" At The Farm" by Richard Le Gallienne
Repose fills all the generous space
Of undulant plain; the rook and crow
Hush; 'tis as if a silent grace,
By Nature murmured, calmed the face
Of Heaven above and Earth below.
"The Optimist" by James Russell Lowell
Bridegroom night of love, working surely and softly into the
prostrate dawn;
Undulating into the willing and yielding day,
Lost in the cleave of the clasping and sweet-flesh'd day.
"I Sing The Body Electric" by Walt Whitman

In news:

Summering on the Undulating Curve of Shifting Expectations.
A Final Flurry From the Undulating Curve of Shifting Expectations.
Stranded on the Undulating Curve of Shifting Expectations.
Fresh Meat on the Undulating Curve of Shifting Expectations.
The Undulating Curve Prepares Its Acceptance Speech.
While 3D golf allows the viewer to see the swales and undulating contours of the golf course terrain, it does not enable the action to come toward the viewer.
The Undulating Curve of Lena Dunham.
An endless stream of what looks like hardwood cascades over a metal cliff before gently undulating through a series of.
Happy Post-Roundup From the Undulating Curve of Shifting Expectations.
The new space consists of ground- and lower-ground-level interiors topped by a golden, undulating roof.
In Paris, Rudy Ricciotti and Mario Bellini's "flying carpet" creates an undulating addition to the Musée du Louvre .
The undulating pattern of Mirage 2 is reminiscent of a trellis or delicate gate, and its winged visitor seems frozen in time.
For centuries, the undulating, vine-covered hills of the Langhe, a strip in the southern Piedmont region, existed as a place out of time.
The Shapes line from 3form is a toolkit of pre-designed and fully configurable resin panels featuring compound, undulating curves, peaks and valleys.
Introduction Softly undulating hills modulate the topography of San Fran cisco .

In science:

Here, we have assumed that the radiator is 4.45 m long with an undulator period of 4.45 cm.
Generation of Multi-Color Attosecond X-Ray Radiation Through Modulation Compression
We also show that a transverse random force effectively makes the filament softer to compression by inducing undulations.
A constrained random-force model for weakly bending semiflexible polymers
Such a net force yields an overall bend in addition to the microscopic undulations.
A constrained random-force model for weakly bending semiflexible polymers
The last term in the r.h.s. of the above equation is the decrease in the end-to-end distance due to the undulations caused by the transverse random force.
A constrained random-force model for weakly bending semiflexible polymers
We assume that its thickness is much smaller than the length scales describing its shape and its undulations.
Amphiphilic Membranes