What does HAO stand for?

The list of HAO abbreviation meanings.

Stands For|21Abbreviated As|0Related|0
11
High Altitude Observatory(Celestial objects, Astronomy, Organization)
3
Hydroxylamine Oxidoreductase
2
Health Action Overseas
2
Hospice Association of Ontario
2
Humanitarian Assistance Operation
2
Humanitarian Assistance Operations
2
Hybrid Atomic Orbital(Science)
2
Hydrogenic Atomic Orbital(Science)
1
High Armanen Order
1
hepatic artery occlusion
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APASmart Define. (2017). hao. Retrieved September 25, 2026, from http://smartdefine.org/hao/abbreviations/f
ChicagoSmart Define. 2017. "hao" http://smartdefine.org/hao/abbreviations/f (accessed September 25, 2026).
HarvardSmart Define 2017, hao, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/hao/abbreviations/f>.
MLASmart Define. "hao" 14 November 2017. Web. 25 September 2026. <http://smartdefine.org/hao/abbreviations/f>