UNDULATION

wave, undulation

(noun) (physics) a movement up and down or back and forth

undulation

(noun) wavelike motion; a gentle rising and falling in the manner of waves

wave, undulation

(noun) an undulating curve

Source: WordNet® 3.1

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Etymology

Noun

undulation (countable and uncountable, plural undulations)

An instance or act of undulating.

A wavy appearance or outline; waviness.

(music) A tremulous tone produced by a peculiar pressure of the finger on a string.

A wavelike curve; a smooth and regular rise and fall.

A wavelike motion of the air; electromagnetic radiation.

(medicine, dated) A feeling as if of an undulatory motion about the heart.

(medicine, dated) The distinctive motion of the matter within an abscess on being pressed when it is ripe for opening.

Source: Wiktionary

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Un`du*la"tion, n. Etym: [Cf. F. ondulation.]

1. The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.

2. A wavy appearance or outline; waviness. Evelyn.

3. (Mus.) (a) The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin. (b) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.

4. (Physics)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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