English abbreviations from sdr to sdt
- SDR (Santander - Parayas Airport)
- SDRAM (Synchronous Dynamic Random Access Memory)
- SDRAM — (i) Synchronous Dynamic Random (Access Memory (“ess-dee-ram”))
- SDRB (Specification and Data Review Board)
- SDRC (San Diego Running Community)
- SDRCC (Sport Dispute Resolution Centre of Canada)
- SDREN (Secure Defense Research and Engineering Network)
- SDRF (Sustainable Development Research Foundation)
- SDRL (Sea Date Required to Load)
- SDRT (Supply Discrepancy Reports Team)
- S.D.S. (Societas Divini Salvatoris ("Society of the Divine Saviour"))
- SDS (Scientific Data Set)
- SDSC (Scalable Data Structure Compiler)
- SDSF (Shwachman-Diamond Syndrome Foundation)
- SDSG (Space Division Switching Group)
- SDSI (Shwachman-Diamond Syndrome International)
- SDSL (Symmetric DSL)
- SDSM (Space Division Switching Matrix)
- SDSMT (System Dynamics Simulation Modeling Tools)
- SDSS ((observing program/catalog) Sloan Digital Sky Survey, a large imaging and spectroscopic survey; also the catalog of sources from the survey)
- SDSSp ((catalog) Sloan Digital Sky Survey provisory)
- SDSU (San Diego State University)
- SDT (Step Draw-down Test (sometimes SDDT))