undulation

IPA: ˈʌndʒʌɫˈeɪʃʌn

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.

Examples of "undulation" in Sentences

The sound of undulation dappled with the scriptures of the sun.
There is a kind of undulation in the popularity of the great writers, even of the first rank.
There was a kind of undulation in her body, which ended in a little sob, which was hidden and stifled by her fingers.
This one is particularly difficult because of the undulation in the fairways and the demand that it puts on the second shot.
There are two motions of the waves -- one up and down, which we call undulation, the other to and fro, which we call fluctuation.
And the chief reason for this undulation is that they play leading roles on the home front; leading to supporting roles on the work front.
The undulation is the work of two collaborators: it expresses both the nature of the object which provokes it and that of the nervous apparatus which is its vehicle.
The poor, I found, believed that this pious exercise dispersed the evil spirits of the storm; while the better sort conceived that it occasioned some kind of undulation in the air, and so broke the continuity of the electric fluid.