| Abbreviation | Definition |
|---|---|
| IBD | Ion Beam Deposition |
| IBE | Ion Beam Etching |
| IBE | Isoelectronic Bound Exciton |
| IBEW | International Brotherhood of Electrical Workers |
| IBI | Inter-Beat Interval |
| IC | Impedance Coupled |
| IC | Inner Conductor |
| IC | Insulation Compatible |
| IC | Integrated Circuit |
| IC | Investment Council |
| IC | Ion Chromatography |
| ICA | Independent Component Analysis |
| ICA | Isotropically Conductive Adhesive |
| ICAM | Integrated Computer-Aided Manufacturing |
| ICAP | Inductively-Coupled Argon-Plasma spectrometry |
| ICC | Integrated Circuit Capacitor |
| ICC | Integrated Circuit Chip |
| ICC | Item Characteristic Curve |
| ICCD | Intensified Charge Coupled Device |
| ICCG | Incomplete Conjugate Gradient |