Definitions
1.nounAn instance or act of undulating.
2.nounA wavy appearance or outline; waviness.
3.nounA tremulous tone produced by a peculiar pressure of the finger on a string.
4.nounA wavelike curve; a smooth and regular rise and fall.
5.nounA wavelike motion of the air; electromagnetic radiation.
6.nounA feeling as if of an undulatory motion about the heart.
7.nounThe distinctive motion of the matter within an abscess on being pressed when it is ripe for opening.