| ic | between meals [Lat. inter cibos] |
|---|---|
| ICHD | Inter-Society Commission for Heart Disease Resources |
| IDI | immunologically detectable insulin; induction-delivery interval; inter-dentale inferius |
| ITI | inter-alpha-trypsin inhibitor; intertrial interval |
| ITIH2 | inter-alpha-trypsin inhibitor, heavy chain 2 |