undulation

noun

1. an undulating curve

   Synonyms

   • wave

   Less specific

   • curve, curved shape

   More specific

   • sine curve, sinusoid

2. wavelike motion; a gentle rising and falling in the manner of waves

   Less specific

   • movement, motion

3. (physics) a movement up and down or back and forth

   Synonyms

   • wave

   Less specific

   • movement, motion

   More specific

   • gravity wave, gravitation wave, sine wave, oscillation, vibration, fluctuation, seiche, standing wave, stationary wave, traveling wave, travelling wave, sound wave, acoustic wave, wave form, waveform (more) , wave shape, shock wave, blast wave, pulsation, pulsing, pulse, impulse, flap, flapping, flutter, fluttering