Definition of polysomnography in English:

polysomnography

noun

Medicine
  • The monitoring and recording during a person's sleep of various parameters such as brain activity, breathing, and limb movements, usually as part of an investigation into sleeping or sleep-related disorders; an instance of this.

Origin

1980s. From polysomno- + -graphy.

Pronunciation

polysomnography

/ˌpɒlɪsɒmˈnɒɡrəfi/