U字母開頭的單詞或詞組(第2頁)：
- ursine
- uridrosis
- undeserving
- ulcus molle
- ureteroureterostomy
- use of undue autority
- uraemia
- U.S.S.R.
- upon inquiry I learnt that...
- undying
- uranium boride
- underhorn
- unilateral flushsweat
- upset stomach
- ustilaginism
- urea unit
- unequivalence interrupt
- unbalanced mind
- Ulmus keaki
- unit record routine
- uptime
- ultra-violet short
- unary Boolean operator
- unstable compound
- upper and lower intervention limits
- uniform motion
- unfledged
- urea
- uterosalpingography
- unacknowledged data
- untranslated sequences
- ultra-acoustics
- utility fund
- undecyne diacid
- urinary incontinence
- UC
- urticaria papulosa
- undecalactone
- uranium mercaptide
- unobstructed