| U | in or of the month preceding the present one |
|---|---|
| U | (used of opinions and actions) far beyond the norm |
| U | (law) beyond the legal power or authority of a person or official or body etc |
| U | beyond the scope or in excess of legal power or authority |
| U | a cephalosporin antibiotic (trade name Ultracef) |
| U | centrifugation at very high speeds |
| U | a high speed centrifuge used to determine the relative molecular masses of large molecules in high polymers and proteins |
| U | subject to the action of an ultracentrigue |
| U | an extreme conservative |
| U | extremely conservative |
| U | 300 to 3000 megahertz |
| U | vivid blue to purple-blue |