American Heritage® Dictionary of the English Language, Fourth Edition
- n. Altitude sickness brought on by the diminished oxygen pressure at mountain elevations.
- n. medicine Altitude sickness.
- n. nausea and shortness of breath experienced by mountain climbers above ten thousand feet
“So short of breath are they that we dared not send them over-mountain, for the mountain sickness would have killed them.”
These user-created lists contain the word ‘mountain sickness’.
Looking for tweets for mountain sickness.