Science Abbreviations and Acronyms
- HSDHeliospheric Science Divisionsion
- HSDHimacs Systems Development
- HSDHuman Studies Division
- HSDHuman Studies Divisionsion
- HSDHuman Systems Dynamics
- HSDBHazardous Substance Data Bank
- HSDBHazardous Subsbances Data Bank
- HSDBHazardous Substance Data Base
- HSDHHomoserine Dehydrogenase
- HSDIHuman Sustainable Development Index
- HSDIPHeuristics and Search for Domain-Independent Planning
- HSDLHigh-Bit-Rate Digital Subscriber Line
- HSDMCHigh Speed Direct Multiplex Control
- HSDPHanford Site Development Plan
- HSDPHawaiian Scientific Drilling Project
- HSDPHigh School Diploma Program
- HSDSHigh Speed Data Bervices
- HSDWHanford Site Defense Waste
- HSEHealth, Safety and Environment
- HSEHealth Scaences Education
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