| Rank | Abbreviation | Meaning |
|---|
| ***** | EA 1 | Early Activation Antigen 1
| |
| ***** | GAL 1 | Galectin 11
| |
| ***** | CIN 1 | Cervical Intraepithelial Neoplasia Grade 1
| |
| **** | VIN 1 | Vulvar Intraepithelial Neoplasia Grade 1
| |
| *** | GS 1 | Gramicidin S Synthetase 1
| |
| *** | HMSN 1 | Hereditary Motor and Sensory Neuropathy Type 1
| |
| *** | MAP 1 | Anti-Microtubule Associated Protein 1
| |
| ** | ITS 1 | Intergenic Transcribed Spacer Region 1
| |
| ** | IEF 1 | Insulin Enhancer Binding Factor 1
| |
| ** | PBPS 1 | penicillin-binding proteins 1a and 1b
| |
| * | MBB 1 | Membrane Bound Bodies of Type 1
| |
| * | UEA 1 | Ulex Europaeus Agglutinin Type 1
| |
| * | MENS 1 | Multiple Endocrine Neoplasia Syndrome Type 1
| |
| * | EHDV 1 | Epizootic Hemorrhagic Disease of Deer Virus Serotype 1
| |
| * | HMG 1 | high-mobility-group protein 1
| |
| * | FIV 1 | Forced Inspiratory Volume in 1 second
| |
| * | 1° BLOCK | 1st Degree Block
| |
| * | HEAO 1 | High Energy Astronomy Observatory 1
| |
| * | CES 1 | Carboxylesterase 1
| |
| * | USMLE 1 | United States Medical Licensing Examination Step 1
| |
| * | HSV 1 | Herpes Simplex Virus 11
| |
| * | PA 1 | Plasma Angiotensin 1
| |