| Acronym | Meaning |
| IBD | Inflammatory Bowel Diseases |
| TOVS | TIROS Operational Vertical Sounder |
| CNOC | Commission On Nomenclature Of Organic Chemistry |
| ANITA | Ammonia And Nitrification Analyzer |
| UFL | Upper Flammable Limit |
| VIP | Vasoactive Intestinal Peptide |
| IAH | International Association Hydrogeologists |
| NLC | Nematic Liq. Crystal |
| FASI | Field-amplified Sample Injection |
| HADD | Highest Average Daily Dose |