- HAC
HAC may refer to:
*
Hackney Downs railway station , London; National Rail station code HAC
*Le Havre Athletic Club a professional football club in France.
* Heavy Assault Cruiser, a spaceship category in the MMOG EVE Online (seeSpaceships of EVE Online )
*Hectare
*Hellenic Alternative Charts
*Herefordshire Aero Club
* Heteroskedasticity Autocorrelation Consistent (Newey-West)
*High Acid Crude oil a crude oil with a high consentration ofNaphthenic acid s
*High-availability cluster (computing)
* Hokkaido Air System Co., Ltd.
*Honourable Artillery Company
*Hóquei Académico de Cambra , a rink hockey club from Vale de Cambra, Portugal.
*Human artificial chromosome
*Humanist Association of Canada
*Humboldt Arts Council -art council in California, USA.
*Hyles-Anderson College
* House Appropriations Committee, a committee of the United States House of Representatives.
* The U.S.Hearing Aid Compatibility Act, 1988ee also
*
Acetic acid , often abbreviated HAc or HOAc
*Acetaldehyde , often abbreviated HAc
* HHC (in the U.S. Army, meaningHeadquarters and Headquarters Company ) sometimes pronounced "Hac"
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