U
| Name | Description | Related terms |
|---|---|---|
| UIN | unique identifying number | |
| UL |
APVMA formulation type code for ultra-low volume (liquid) |
|
| ULV |
APVMA formulation type code for ultra-low volume (liquid) |
|
| USAN | United States adopted name (of a chemical) | |
| USDA | United States of America Department of Agriculture | |
| USEPA | United States Environmental Protection Agency | |
| USFDA | United States Food and Drug Administration | |
| USP | United States pharmacopeia and National Formulary | |
| UV | ultraviolet |