- 波状云 bōzhuàngyún undulatus clouda type of cloud formation characterized by parallel wavy lines or undulations
- 波状消光 bōzhuàngxiāoguāng undulose extinction(geology) undulose extinction
- 波状热 bōzhuàngrè undulant fevera bacterial infection also known as brucellosis, characterized by a fever that rises and falls in a wave-like pattern