| VH | variable domain of heavy chain; variable heavy chain |
|---|---|
| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
| AH | 1) Atrial Hypertrophy 2) Anti-Hyaluronidase 3) Amyloid imm... |
| e | Greek letter epsilon; heavy chain of IgE; permittivity; specific absorptivity |
| Fd | the amino-terminal portion of the heavy chain of an immunoglobulin molecule; ferredoxin |