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Undulation :: Undulation (n.) The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound..

Fluctuant :: Fluctuant (a.) showing undulation or fluctuation; as, a fluctuant tumor..

Trail :: Trail (n.) Anything drawn behind in long undulations; a train.

Wave :: Wave (v. i.) A vibration propagated from particle to particle through a body or elastic medium, as in the transmission of sound; an assemblage of vibrating molecules in all phases of a vibration, with no phase repeated; a wave of vibration; an undulation. See Undulation..

Rolling :: Rolling (a.) Having gradual, rounded undulations of surface; as, a rolling country; rolling land..

Purl :: Purl (v. & n.) To rise in circles, ripples, or undulations; to curl; to mantle..

Crimp :: Crimp (v. t.) To fold or plait in regular undulation in such a way that the material will retain the shape intended; to give a wavy appearance to; as, to crimp the border of a cap; to crimp a ruffle. Cf. Crisp..

Ripple :: Ripple (n.) A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter..

Undulatory :: Undulatory (a.) Moving in the manner of undulations, or waves; resembling the motion of waves, which successively rise or swell rise or swell and fall; pertaining to a propagated alternating motion, similar to that of waves..

Curl :: Curl (n.) To raise in waves or undulations; to ripple.

Ripple :: Ripple (v. t.) To fret or dimple, as the surface of running water; to cover with small waves or undulations; as, the breeze rippled the lake..

Phonograph :: Phonograph (n.) An instrument for the mechanical registration and reproduction of audible sounds, as articulate speech, etc. It consists of a rotating cylinder or disk covered with some material easily indented, as tinfoil, wax, paraffin, etc., above which is a thin plate carrying a stylus. As the plate vibrates under the influence of a sound, the stylus makes minute indentations or undulations in the soft material, and these, when the cylinder or disk is again turned, set the plate in vibration

Fluctuation :: Fluctuation (n.) The motion or undulation of a fluid collected in a natural or artifical cavity, which is felt when it is subjected to pressure or percussion..

Undulation :: Undulation (n.) A motion to and fro, up and down, or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibration..

Flutist :: Flutist (n.) To move with quick vibrations or undulations; as, a sail flutters in the wind; a fluttering fan..

Undulation :: Undulation (n.) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.

Undulative :: Undulative (a.) Consisting in, or accompanied by, undulations; undulatory..

Wave :: Wave (v. i.) An advancing ridge or swell on the surface of a liquid, as of the sea, resulting from the oscillatory motion of the particles composing it when disturbed by any force their position of rest; an undulation..

Undulate :: Undulate (v. t.) To cause to move backward and forward, or up and down, in undulations or waves; to cause to vibrate..

Waved :: Waved (a.) Having undulations like waves; -- said of one of the lines in heraldry which serve as outlines to the ordinaries, etc..

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