ondulação angolul

fluctuation [fluctuations]▼(wavelike motion)
noun
[UK: ˌflʌk.tʃʊ.ˈeɪʃ.n̩] [US: ˌflʌk.tʃuː.ˈeɪʃ.n̩]

ripple [ripples]▼(moving disturbance or undulation in the surface of a liquid)
noun
[UK: ˈrɪp.l̩] [US: ˈrɪp.l̩]

wave [waves]▼(moving disturbance in a field)
noun
[UK: weɪv] [US: ˈweɪv]