| Abbreviation | Full Name |
| PMI | Postmortem Interval |
| sncRNA | Small Non-coding RNA |
| sRNA | Small RNA |
| RF | Random Forest |
| R2 | Coefficient of Determination |
| MAE | Mean Absolute Error |
| PANDORA-seq | PANDORA sequencing |
| miRNA | MicroRNA |
| tsRNA | Transfer RNA-derived small RNA |
| piRNA | PIWI-interacting RNA |
| RIN | RNA integrity |
| mRNA | Messenger RNA |
| rsRNA | Ribosomal RNA-derived small RNA |
| FCM | Fuzzy C-Means |
| GO | Gene Ontology |
| RPM | Reads per million mapped reads |
| ANN | Artificial Neural Network |
| RMSE | Root Mean Square Error |
| SHAP | SHapley Additive exPlanations |
| RFECV | Recursive Feature Elimination with Cross-Validation |
| ysRNA | Y RNA-derived small RNA |
| ECM | Extracellular Matrix |