sort by Rank | Alpha
| Possible Meanings | Rank |
| indole-3-glycerol phosphate synthase reaction | ** |
| Imidazole Glycerol Phosphate Synthetase | ** |
| Interactive Guest Paging System | * |
| Illinois Group Psychotherapy Society | * |
| Indole glycerol phosphate synthase | * |
| Intermetrics Global Positioning System | * |