antasphyctic
/ˌæntəˈsɪftɪk/Definitions
1. adjective
relating to or characterized by a lack of oxygen or an insufficiency of oxygen.
“The anasphyctic conditions in the mine were causing serious health concerns among the miners.”
2. noun
a condition or state of being anasphyctic.
“The doctor warned the patient about the dangers of anasphyctic episodes during sleep.”