Share Facebook Twitter LinkedIn Email Telegram WhatsApp A life-threatening condition at high altitudes, characterized by fluid accumulation in the lungs, resulting in symptoms such as severe shortness of breath and coughing. Synonyms: HAPERelated Articles: A Himalayan OdysseyPractical Advice for Using O2 Sat Meters on ExpeditionsThe Power of a Good BaseHow Long Does it Take to Climb Mount EverestIntroduction to Altitude