| EER | electroencephalographic response |
|---|---|
| EGR | early growth response; erythema gyratum repens |
| ER | efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic re... |
| ERD | evoked response detector |
| EV | electronic vehicle; emergency vehicle; enterovirus; epidermodysplasia verruciformis; estradiol valer... |