Buy Me a Coffee at ko-fi.com

Freediving blackout

loss of consciousness caused by cerebral hypoxia towards the end of a breath-hold dive

Pronunciation
/ˈfriˌdaɪvɪŋ ˈblækˌaʊt/
/ˈfriːdʌɪvɪŋ ˈblakaʊt/