| IDG | intermediate dose group |
|---|---|
| IDIC | Internal Dose Information Center |
| IDM | idiopathic disease of myocardium; immune defense mechanism; indirect method; infant of diabetic moth... |
| IDP | immunodiffusion procedure; inflammatory demyelinating neuropathy; initial dose period; inosine dipho... |
| ImD50 | immunizing dose sufficient to protect 50% of the animals in a test group |