undulation
英 [ˌʌndjuˈleɪʃn]
美 [ˌʌndʒəˈleɪʃn]
n. 波浪形; 起伏; 波动; 荡漾
复数:undulations
BNC.24577 / COCA.28179
牛津词典
noun
- 波浪形;起伏;波动;荡漾
a smooth curving shape or movement like a series of waves
英英释义
noun
- (physics) a movement up and down or back and forth
- wavelike motion
- an undulating curve