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80 Words That Start With UR

Word Definitions Synonyms
uracil (noun) a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine U
uraemia (noun) accumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urine uremia, azotaemia, azotemia
uraemic (adjective) of or involving excess nitrogenous waste products in the urine (usually due to kidney insufficiency) uremic, azotemic
uranalysis (noun) (medicine) the chemical analysis of urine (for medical diagnosis) urinalysis
uraninite (noun) a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore pitchblende
uranium (noun) a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons U, atomic number 92
uranologist (noun) a physicist who studies astronomy stargazer, astronomer
uranology (noun) the branch of physics that studies celestial bodies and the universe as a whole astronomy
uranoplasty (noun) surgical correction of a defect of the palate -
uranyl (noun) the bivalent radical UO2 which forms salts with acids uranyl group, uranyl radical
urarthritis (noun) a painful inflammation of the big toe and foot caused by defects in uric acid metabolism resulting in deposits of the acid and its salts in the blood and joints gout, gouty arthritis
urate (noun) a salt of uric acid -
uratemia (noun) presence of abnormal amounts of uric acid salts in the blood; symptom of gout -
uraturia (noun) presence of abnormally large amounts of uric acid in the urine; symptom of gout -
urban (adjective) relating to or concerned with a city or densely populated area -
urban (adjective) located in or characteristic of a city or city life -
urbane (adjective) showing a high degree of refinement and the assurance that comes from wide social experience refined, polished
urbanely (adverb) in an urbane manner -
urbanisation (noun) the condition of being urbanized urbanization
urbanisation (noun) the social process whereby cities grow and societies become more urban urbanization
urbanise (verb) impart urban habits, ways of life, or responsibilities upon urbanize
urbanise (verb) make more industrial or city-like urbanize
urbanised (adjective) made urban in nature; taking on urban characteristics urbanized
urbanity (noun) polished courtesy; elegance of manner -
urbanity (noun) the quality or character of life in a city or town -
urbanization (noun) the condition of being urbanized urbanisation
urbanization (noun) the social process whereby cities grow and societies become more urban urbanisation
urbanize (verb) make more industrial or city-like urbanise
urbanize (verb) impart urban habits, ways of life, or responsibilities upon urbanise
urbanized (adjective) made urban in nature; taking on urban characteristics urbanised
urceolate (adjective) urn-shaped; large below and contracted toward the mouth -
urceole (noun) a vessel that holds water for washing the hands -
urchin (noun) poor and often mischievous city child -
urea (noun) the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics carbamide
urease (noun) an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia; is present in intestinal bacteria -
ureide (noun) any compound, of general formula R-CO-NH-CO-NH2 or R-CO-NH-CO-NH-CO-R', formally derived by the acylation of urea. -
uremia (noun) accumulation in the blood of nitrogenous waste products (urea) that are usually excreted in the urine uraemia, azotaemia, azotemia
uremic (adjective) of or involving excess nitrogenous waste products in the urine (usually due to kidney insufficiency) uraemic, azotemic
ureter (noun) either of a pair of thick-walled tubes that carry urine from the kidney to the urinary bladder -
ureteritis (noun) inflammation of the ureter -
ureterocele (noun) prolapse of the end of the ureter into the bladder; may obstruct urine flow -
ureterostenosis (noun) stenosis of the ureter -
urethane (noun) an ester of carbamic acid -
urethra (noun) duct through which urine is discharged in most mammals and which serves as the male genital duct -
urethral (adjective) of or relating to the urethra -
urethritis (noun) inflammation of the urethra; results in painful urination -
urethrocele (noun) prolapse of the urethra into the vagina -
urge (noun) an instinctive motive impulse
urge (noun) a strong restless desire itch
urge (verb) force or impel in an indicated direction press, urge on, exhort
urge (verb) push for something recommend, advocate
urge (verb) spur on or encourage especially by cheers and shouts inspire, pep up, barrack, cheer, root on, urge on, exhort
urgency (noun) the state of being urgent; an earnest and insistent necessity -
urgency (noun) pressing importance requiring speedy action -
urgency (noun) an urgent situation calling for prompt action -
urgency (noun) insistent solicitation and entreaty urging, importunity
urgent (adjective) compelling immediate action pressing
urgently (adverb) with great urgency desperately
urging (noun) a verbalization that encourages you to attempt something prod, goad, spur, prodding, goading, spurring
urging (noun) the act of earnestly supporting or encouraging -
urging (noun) insistent solicitation and entreaty urgency, importunity
urial (noun) bearded reddish sheep of southern Asia Ovis vignei
uric (adjective) in or relating to or obtained from urine -
uricaciduria (noun) presence of abnormal amounts of uric acid in the urine; symptom of gout -
uricosuric (adjective) acting to increase the excretion of uric acid in the urine -
urinal (noun) a plumbing fixture (usually attached to the wall) used by men to urinate -
urinalysis (noun) (medicine) the chemical analysis of urine (for medical diagnosis) uranalysis
urinary (adjective) of or relating to the function or production or secretion of urine -
urinary (adjective) of or relating to the urinary system of the body -
urinate (verb) pass after the manner of urine -
urinate (verb) eliminate urine make, puddle, piddle, relieve oneself, make water, micturate, pass water, pee, pee-pee, piss, wee, wee-wee, spend a penny, take a leak
urination (noun) the discharge of urine micturition
urinator (noun) a person who urinates pisser
urine (noun) liquid excretory product pee, piddle, piss, water, weewee
urn (noun) a large vase that usually has a pedestal or feet -
urn (noun) a large pot for making coffee or tea -
urobilin (noun) brown bile pigment formed from urobilinogens and found in feces and in small amounts in urine -
urobilinogen (noun) a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine stercobilinogen
urocele (noun) extravasation of urine into the scrotal sac -
urochesia (noun) passage of urine from the anus urochezia
urochezia (noun) passage of urine from the anus urochesia
urochord (noun) primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva urochordate, tunicate
urochord (noun) a notochord of a larval tunicate typically confined to the caudal region -
urochordate (noun) primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva urochord, tunicate
urodele (noun) amphibians that resemble lizards caudate
urodynia (noun) pain during urination -
urogenital (adjective) of or relating to the urinary and reproductive systems -
urokinase (noun) protease produced in the kidney that converts plasminogen to plasmin and so initiates fibrinolysis plasminogen activator
urolith (noun) a urinary stone -
urologist (noun) a specialist in urology -
urology (noun) the branch of medicine that deals with the diagnosis and treatment of disorders of the urinary tract or urogenital system urogenital medicine
uropathy (noun) any pathology of the urinary tract -
uropygium (noun) posterior part of a bird's body from which the tail feathers grow -
ursine (adjective) of or relating to or similar to bears -
ursinia (noun) any of various plants of the genus Ursinia grown for their yellow- or orange- or white-rayed flowers -
urticaria (noun) an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs urtication, nettle rash, hives
urticate (verb) whip with or as with nettles -
urticate (verb) sting with or as with nettles and cause a stinging pain or sensation nettle
urtication (noun) an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs urticaria, nettle rash, hives
urtication (noun) a sensation of having been stung by nettles -
urus (noun) large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle aurochs, Bos primigenius

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