Anoxia is defined as oxygen deprivation experienced by a fetus during labour and/or delivery
Other /More definition:
Anoxia refers to a condition characterized by lack of or sufficient oxygen to the brain; may result in neurological damage or death.

Anoxia likewise refers to the complete cessation of oxygen supply to the brain which often occurs with stroke or other severe traumas of the brain, such as are often seen in gunshot wounds to the head.