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What does HACO stand for?

HACO stands for High Altitude Cerebral Oedema (altitude-related altered consciousness)

This definition appears somewhat frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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Other Resources:
We have 5 other meanings of HACO in our Acronym Attic

Samples in periodicals archive:

The dangerous mission saw Jeff's guide develop potentially fatal high altitude cerebral oedema, meaning the trip was suddenly called off as the remaining four sat at High Camp, at 5,200m (17,000ft), ready to head to the summit.