Your abbreviation search returned 110 meanings
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| Rank Abbr. | Meaning | |
|---|---|---|
| ER | Extended-Release | |
| ER | Earned Runs (baseball; pitching) | |
| ER | Emergency Room | |
| ER | Error | |
| ER | Entity Relationship | |
| ER | Energy Research | |
| ER | Employer (IRB) | |
| ER | Emergency Response | |
| ER | Office of Energy Research | |
| ER | Estrogen Receptor | |
| ER | Extended Range | |
| ER | Extended Range (C-17 acquisition program) | |
| ER | Enterprise Resource Planning | |
| ER | Early Release | |
| ER | Event Registration | |
| ER | Eastern Region | |
| ER | Educational Research | |
| ER | Eritrea | |
| ER | Employment Relations | |
| ER | Employee Relations | |
| ER | Easy Rider (movie) | |
| ER | External Relations | |
| ER | Evaluation Report | |
| ER | Early Retirement | |
| ER | Environmental Restoration | |
| ER | Electromagnetic Radiation (energy) | |
| ER | Environmental Report | |
| ER | Entre Rios (Argentina Province, airline code) | |
| ER | Emission Reduction (environment) | |
| ER | Electronic Records | |
| ER | Erbium | |
| ER | Equipment Required | |
| ER | Endoplasmic Reticulum | |
| ER | Earth Resources | |
| ER | Extensive Reading | |
| ER | Event Rate | |
| ER | Energy Rating | |
| ER | Eleanor Rigby (Beatles song) | |
| ER | Eye Relief (optics) | |
| ER | Equipment Room | |
| ER | Escape Route | |
| ER | Expense Ratio | |
| ER | Ecosystem Restoration | |
| ER | Educational Researcher (journal) | |
| ER | Evidence Rule | |
| ER | Employee Retention | |
| ER | Epic Records (record label) | |
| ER | Exceptional Release (mission capable aircraft) | |
| ER | Enfermedad Rara (Spanish: Rare Disease) | |
| ER | Ecological Reserve | |
| ER | Electron Reflectometer | |
| ER | Electrical Resistivity | |
| ER | Eastern Railway | |
| ER | External Rotation | |
| ER | Evolutionary Robotics | |
| ER | Expenditure Request (various organizations) | |
| ER | Emotional Rescue (Rolling Stones album) | |
| ER | Expense Report | |
| ER | Evening Reading (Shacknews) | |
| ER | Elektra Records (record label) | |
| ER | Employer's Requirements | |
| ER | Energy Resolution | |
| ER | Enhancement Request | |
| ER | Engineering Report | |
| ER | Earnings Record | |
| ER | Exchange Ratio | |
| ER | Explicit Routing | |
| ER | Explicit Rate (networking) | |
| E/R | Exposure/Response | |
| ER | Established Record | |
| ER | Expanded Response | |
| ER | Energy Regulator | |
| ER | Electro-Rheological | |
| ER | Engineroom | |
| ER | Enterprise Requirements | |
| ER | Enhanced Radiation | |
| ER | Engineer Regulation | |
| ER | Efficiency Review | |
| ER | External Resistance | |
| ER | Established Reliability (C-17 acquisition program) | |
| ER | Employee Request | |
| ER | Equilibrium Reactions | |
| ER | Engineering Release | |
| ER | Electronic Reconnaissance | |
| ER | Efficient Review | |
| ER | Extracellular Release | |
| ER | Ephemeral Region | |
| ER | Electricity Report | |
| ER | Echo Ranging | |
| ER | Enantiomeric Ratio (chemistry) | |
| ER | Electoral Region (UK) | |
| ER | Engineering Request | |
| ER | Estimate of Repair | |
| ER | DHL Airways, Inc (IATA airline code) | |
| ER | Enhancement Report | |
| ER | Euro Repuestos SA (Guatemala) | |
| ER | Effective Roughness | |
| ER | Eternal Rage (Call of Duty gaming clan) | |
| ER | Executive Registrar | |
| ER | Equipment Requisition | |
| ER | Extracting Roots | |
| ER | Elizabetha Regina (Queen Elizabeth) | |
| ER | Error Recorder | |
| ER | End Transaction and Retrieve | |
| ER | Electronic Requirement | |
| ER | Elite Regions (Ominix gaming) | |
| ER | Exploitation Requirement | |
| ER | Enceinte Réacteur (French: Reactor Chamber) | |
| ER | Electrolytic/Electrochemical Refining | |
| E/R | Evaluator/Reporter | |
Note: We have 64 other definitions for E/R in our Acronym Attic