| Abbreviation | Definition |
|---|---|
| UEA | Universal Enveloping Algebra |
| UFD | Unique Factorization Domain |
| UFP | Unadjusted Function Point |
| UGIT | Universal Graph Isomorphism Tuple |
| UGN | Unbounded Generating Number |
| UGP | Unit Generator Process |
| UHML | Upper Half Mean Length |
| UIC | Use Initial Condition |
| UIJ | Utility of alternative j to individual i |
| UJM | Unnes Journal of Mathematics |
| UKF | Unscented Kalman Filter |
| UKP | Unbounded Knapsack Problem |
| ULF | Underspecified Logical Form |
| ULL | Upper Linear Limit |
| ULN | Upper Limit of Normal |
| ULN | Upper Limits - Normal |
| ULN | upper limits of normal |
| ULP | Unit Of Last Position |
| ULS | Ultra Linear Series |
| ULS | Ultra Linear System |