| HEL | hen egg white lysozyme; human embryonic lung; human erythroleukemia |
|---|---|
| HeLa | Helen Lake [human cervical carcinoma cells] |
| HELF | human embryo lung fibroblast |
| HELLIS | Health, Literature, Library and Information Services |
| HELLP | hemolysis, elevated liver enzymes, and low platelet count [syndrome] |
| HELP | Hawaii early learning profile; Health Education Library Program; Health Emergency Loan Program; Health Evaluation and Learning Program; heat escape lessening posture; Heroin Emergency Life Project; Hospital Equipment Loan Project |