Scientific & Educational Abbreviations and Acronyms
- HAMAhuman antimouse antibody
- HAMCHebrew Academy of Morris County
- HANDHumanitarian Aid Network for Distribution
- HAOHigh Altitude Observatory
- HAOHigh Altitude Observatory (NCAR)
- HAPHazardous Air Pollutant
- HAPHigh Age Profile
- HAPHistamine Acid Phosphate
- HAPHolographic Assistance Program
- HAPEXHydrological-Atmospheric Pilot Experiment
- HAPPHIV/AIDS Awareness and Prevention Program
- HAPPYHunkel Appreciation Patrol Plastically Yearning
- HARAHawaii Academy of Recording Arts
- HARPSHigh Accuracy Radial velocity Planet Searcher (spectrography)
- HARSHuman acquired Immunodeficiency Syndrome Reporting System
- HARSHistidyl-ribonucleic Acid Synthetase
- HASHelium Atom Scattering
- HAShyaluronan synthase
- HASAHigh Altitude Southern Appalachian
- HASAPHigh-Altitude Stereo Aerial Photograph
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