U字母開頭的單詞或詞組(第8頁)：
- undousing current
- unified file transfer
- unimolecular acid-catalyzed alkyl-oxygen cleavage
- usus bellici
- unteach
- unclubbable
- unbalanced phase
- unsworn witness
- unsuccessful party
- urosacin
- undetermined coefficient
- URP
- umpteen
- ulnoradial
- uprising
- universal keyset
- untrammeled
- underdamped
- umbo
- unpaid balance
- Umber's test
- unready
- ureidosuccinic acid
- uncommonly
- unsell
- undulated ipecac
- universal mo-tor
- unitized cargo
- unwoven
- uudecode
- unpractiaca
- unconcern
- uranostaphyloplasty
- undecylenate
- unallocated
- unsaturated hydrocarbon
- uslik flea
- unlawfully and maliciously
- utilitarian
- unprofitable firm