Undulation/ˌʌndʒəˈleɪʃn/ Definition 1 of 3Pro Tip 1/3Visual Imagery Use 'undulation' to evoke visual images of movements resembling waves. Watching the undulation of the dancer's arms was mesmerizing. Pro Tip 2/3Figurative Speech 'Undulation' can describe abstract concepts, like feelings, in a vivid way. The undulation of excitement at the concert was palpable. Pro Tip 3/3Positive Connotation 'Undulation' often carries a soothing or peaceful connotation. She was calmed by the gentle undulation of the grass in the breeze.