Pronunciation: [ˈʌndjʊlˌe͡ɪts] (IPA) 
Undulates is spelled with the letter combination "und" pronounced as /ʌn/, followed by "u" pronounced as /juː/, "la" pronounced as /leɪ/, "t" pronounced as /t/, "e" pronounced as /ə/ and "s" pronounced as /s/. The word means to move with a smooth wavelike motion. It is often used to describe the movement of water or hills. It is important to spell this word correctly as it is commonly used in scientific and literary contexts.
Undulate is a verb that describes a rhythmic or smooth wavelike motion or pattern. It is characterized by fluctuating or rising and falling movements in a shape or surface. When something undulates, it moves with a sinuous, rolling, or wavy motion. The term can be employed to describe various types of movements. For instance, it can refer to the graceful undulating motion of a snake as it slithers across the ground. It can also depict the gentle undulations of a landscape, wherein the terrain rises and falls in a rolling and curving manner.
Moreover, undulate can be used figuratively to convey a similar sense of smooth or rhythmic fluctuation in other contexts. For example, it can describe a person's speech or voice when it exhibits a cadence that rises and falls melodically. Similarly, it can characterize the fluid movement or fluctuation of a flag or banner in the wind. In addition, undulate can be applied to describe the curves, ripples, or movements of water, such as waves or the undulating motion of a boat on the sea.
Overall, whether used literally or figuratively, undulate refers to a flowing, wavelike motion or pattern that exhibits smooth, rhythmic fluctuations in a shape, surface, or movement.
The word "undulate" originates from the Latin word "undula", which means "a small wave" or "a little wave". It is derived from the Latin verb "undare", meaning "to rise in waves" or "to flow". "Undare" itself comes from the noun "unda", meaning "wave" or "water". Thus, the term "undulates" is related to the concept of waves or wavelike motions.
