Merriam-Webster Logo
SINCE 1828
Merriam-Webster Logo
Search Icon
GAMES & QUIZZES THESAURUS WORD OF THE DAY FEATURES
  • SHOP
    Buying Guide link icon M-W Books link icon
  • JOIN MWU
    • Up Down
      Merriam-Webster Logo MY WORDSMY WORDS Recents Icon RECENTS settings log out
    • LOG IN
    • REGISTER
    Clear Search Icon
    Search Icon
    dictionary
    thesaurus
    Merriam-Webster Logo Log in Sign Up
    Hello,
    Games & Quizzes Thesaurus Word of the Day Features Buying Guide link icon M-W Books link icon Join MWU
    • Word List Icon My WordsMy Words
    • Recents Icon View Recents
    • Account Icon Account
    Log Out
    Mobile Menu Close Icon

    Words That Start With U

    Browse the Medical Dictionary


    • a
    • b
    • c
    • d
    • e
    • f
    • g
    • h
    • i
    • j
    • k
    • l
    • m
    • n
    • o
    • p
    • q
    • r
    • s
    • t
    • u
    • v
    • w
    • x
    • y
    • z
    • 0-9
    • 3
    • 4
    • 5
    page 4 of 7
    • unpasteurized
    • unphysiologic
    • unphysiological
    • unpigmented
    • unprotected
    • Unq
    • unreactive
    • unresectable
    • unresolved
    • unresponsive
    • unresponsiveness
    • unsanitary
    • unsaponifiable
    • unsaturate
    • unsaturated
    • unsaturation
    • unsegmented
    • unsex
    • unsound
    • unsoundness
    • unstable
    • unstable angina
    • unstriated
    • unstriated muscle
    • unstructured
    • untransformed
    • untranslated
    • untraumatised
    • untraumatized
    • untreatable
    • untreated
    • unvaccinated
    • unwell
    • upgrade
    • upgraded
    • upgrading
    • upper
    • upper airway
    • upper facial index
    • upper gastrointestinal series
    • upper GI series
    • upper jaw
    • upper respiratory
    • upper respiratory tract
    • upregulate
    • upregulated
    • upregulating
    • upregulation
    • upset
    • upsetting
    • upstream
    • uptake
    • urachal
    • urachus
    • uracil
    • uraemia
    • uraemic
    • uramil
    • uranin
    • uraninite
    • uranium
    • uranium 235
    • uranoplasties
    • uranoplasty
    • uranoschises
    • uranoschisis
    • uranoschisises
    • uranostaphyloplasties
    • uranostaphyloplasty
    • uranyl acetate
    • urate
    • uratic
    • urea
    • urea cycle
    • urea peroxide
    • ureaplasma
    • urease
    • Urecholine
    • ureide
    • uremia
    • uremic
    • uremigenic
    • ureometer
    • ureosecretory
    • ureotelic
    • ureotelism
    • ureter
    • ureteral
    • ureterectases
    • ureterectasis
    • ureterectomies
    • ureterectomy
    • ureteric
    • uretericus
    • ureteritis
    • ureterocele
    • ureterocolic
    • ureterocolostomies
    • ureterocolostomy
    • ureteroenterostomies
    • 3
    • 4
    • 5
    page 4 of 7
    TRENDING NOW
    1. magnetometer

    2. Roe v. Wade

    3. sentient Can a computer have consciousness?

    SEE ALL
    Merriam Webster

    Learn a new word every day. Delivered to your inbox!

    OTHER MERRIAM-WEBSTER DICTIONARIES

    • MERRIAM-WEBSTER'S UNABRIDGED DICTIONARY
    • SCRABBLE® WORD FINDER
    • MERRIAM-WEBSTER DICTIONARY API
    • NGLISH - SPANISH-ENGLISH TRANSLATION
    • BRITANNICA ENGLISH - ARABIC TRANSLATION

    FOLLOW US

    • Facebook
    • Twitter
    • YouTube
    • Instagram
    • Browse the Dictionary:
    • a
    • b
    • c
    • d
    • e
    • f
    • g
    • h
    • i
    • j
    • k
    • l
    • m
    • n
    • o
    • p
    • q
    • r
    • s
    • t
    • u
    • v
    • w
    • x
    • y
    • z
    • 0-9
    • BIO
    • GEO
    • Home
    • Help
    • About Us
    • Shop
    • Advertising Info
    • Dictionary API
    • Contact Us
    • Join MWU
    • Videos
    • Word of the Year
    • Vocabulary Resources
    • Law Dictionary
    • Medical Dictionary
    • Privacy Policy
    • Terms of Use
    • Browse the Thesaurus
    • Browse the Medical Dictionary
    • Browse the Legal Dictionary

    © 2022 Merriam-Webster, Incorporated