| Abbreviation | Definition |
|---|---|
| NtRTI | Nucleotide Reverse Transcriptase Inhibitors |
| NVB | Neurovascular Bundle |
| NWG | New West Genetics |
| NYAS | New York Academy of Science |
| OAINN | Ohio Aerospace Institute Neural Networks |
| OBER | Office of Biological and Environmental Research |
| OBI | Open Biodiversity Informatics |
| OCS | Oxford Conception Study |
| ODC | Ornithine Decarboxylase Activity |
| ODN | OligoDeoxyNucleotide |
| OGI | Open Genome Initiative |
| OGL | Ocean Genome Legacy |
| OGM | Optical Genome Mapping |
| OGRI | Overall Genome Relatedness Index |
| OGSF | Ontology for Genetic Susceptibility Factor |
| OGSF | Ontology of Genetic Susceptibility Factors |
| OGT | O-linked N-acetylglucosamine (GlcNAc) Transferase |
| OGT | Oxford Gene Technology |
| OHER | Office of Health and Environmental Research |
| OIC | Osteogenesis Imperfecta Congenita |