(redirected from H-Abstraction Acetylene Addition)
HACAHuman Anti-Chimeric Antibody (medicine)
HACAHistorical Armed Combat Association (now known as ARMA)
HACAHypothermia After Cardiac Arrest
HACAhuman anti-chimeric antibodies
HACAHaute Autorité de la Communication Audiovisuelle
HACAHenderson Allied Community Advocates (Nevada)
HACAHousing Authority of the City of Austin (Texas)
HACAHomestead and Agricultural Credit
HACAHomestead and Agricultural Credit Aid (Minnesota)
HACAHousing Authority of the City of Annapolis (Maryland)
HACAHellenic Association of Communications Agencies (Greece)
HACAHousing Authority of the City of Asheville (North Carolina)
HACAHousing Authority of the County of Alameda (California)
HACAHemophilia Association of the Capital Area
HACAHouston Air Cargo Association (Texas)
HACA6-Hydroxy-2-Aminocaproic Acid
HACAHousing and Community Affairs (Texas)
HACAHawaiian Acres Community Association
HACAHyderabad Agricultural Co-Operative Association Ltd
HACAHmong American Community Association
HACAHousing Authority of the City of Atlanta (Georgia)
HACAHaitian American Community Association (Chicago, IL)
HACAHungarian American Cultural Association
HACAHamilton and Area Curling Association
HACAHouston Area Council of ABWA
HACAHeadford and Corrib Anglers Association (Ireland)
HACAHighway Advertising Control Act of 1971
HACAHighbury Area Community Association
HACAHoosick Area Church Association (New York)
HACAHolocaust Assets Commission Act of 1998
HACAHawthorne Airport Community Association (California)
HACAH-bonding Acceptor Changed Area
HACAHumboldt Academy for Career Advancement
HACAHouston Area Carriage Association
HACAHumanitarian Aid Corridor Act of 1996
HACAHydrogen Acceptor Charged surface Area
HACAHomebuilders Association of Central Arizona
HACAHearing Aid Compatibility Act of 1988
HACAHammered Aluminum Collectors Association
HACAHampton Area Clergy Association (New Hampshire)
HACAH-Abstraction Acetylene Addition (chemistry)