- 混沌学 hùndùnxué chaos theorythe mathematical study of chaos theory; the branch of mathematics dealing with complex systems that are highly sensitive to initial conditions
- 混沌理论 hùndùnlǐlùn chaos theory(math) a branch of mathematics dealing with complex systems whose behavior is highly sensitive to slight changes in conditions
- 混混沌沌 hùnhùndùndùn muddledin a muddle; dazed; a state of being mentally confused or unclear