Meaning of the word "mountain sickness" in English

What does "mountain sickness" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

mountain sickness

US /ˈmaʊntən ˈsɪknəs/
UK /ˈmaʊntɪn ˈsɪknəs/

Noun

an illness that can affect people who travel to a high altitude, caused by a lack of oxygen

Example:
Climbers often suffer from mountain sickness at high altitudes.
Symptoms of mountain sickness include headache, nausea, and dizziness.