13-letter words containing u, t, i
- austrian pine — an evergreen tree, Pina nigra austriaca
- austroasiatic — a family of languages spoken in SE Asia and the landsaround the Bay of Bengal and consisting principally of Vietnamese, Khmer, Mon, Khasi, Nicobarese, and the Munda languages.
- autapomorphic — (biology) Describing any characteristic that has evolved in only a single species (or other taxon).
- authentically — not false or copied; genuine; real: an authentic antique.
- authenticated — Prove or show (something, esp. a claim or an artistic work) to be true or genuine.
- authenticates — Third-person singular simple present indicative form of authenticate.
- authenticator — a person or thing that authenticates.
- authorisation — Alternative spelling of authorization.
- authoritarian — If you describe a person or an organization as authoritarian, you are critical of them controlling everything rather than letting people decide things for themselves.
- authoritative — Someone or something that is authoritative gives an impression of power and importance and is likely to be obeyed.
- authorization — an authorizing or being authorized
- auto-injector — An auto-injector is a hypodermic syringe that you can use to inject yourself with a liquid.
- autobiography — Your autobiography is an account of your life, which you write yourself.
- autocatalysis — the catalysis of a reaction in which the catalyst is one of the products of the reaction
- autocatalytic — causing its own chemical reaction
- autocatharsis — a therapeutic process designed to free unconscious disturbances by having the patient write about his or her experiences, impressions, etc.
- autodidactism — Alternative form of autodidacticism.
- autodigestion — (biology) The digestion of tissue by enzymes produced by the organism itself.
- autoeroticism — the arousal and use of one's own body as a sexual object, as through masturbation
- autographical — Relating to, or used in, the process of autography.
- autoinfection — infection by a pathogenic agent already within the body or infection transferred from one part of the body to another
- automagically — automatically; in a way that is hidden from or not understood by the user, and in that sense, apparently “magical”: I downloaded an app that automagically adds a travel itinerary to my calendar whenever I buy a plane ticket.
- automatically — without volition or from force of habit; mechanically: Whenever I hear that song, I automatically think of my dad.
- automatonlike — Like an automaton; robotic.
- automechanism — an automatic mechanical system or component, especially a device that operates automatically under predetermined conditions.
- autonomically — autonomous.
- autooxidation — autoxidation.
- autopolyploid — (of cells, organisms, etc) having more than two sets of haploid chromosomes inherited from a single species
- autoradiogram — autoradiograph
- autorickshaws — Plural form of autorickshaw.
- autoschediasm — anything done with little forethought or preparation
- autoschediaze — to do or act with little forethought or preparation
- autostability — the property of being stable either as a result of inherent characteristics or of built-in devices
- autotoxicosis — autointoxication.
- averruncation — the act of averting or turning away
- aviation fuel — fuel used to power airplanes
- azurmalachite — a blue-green ornamental stone consisting of a mixture of azurite and malachite.
- back mutation — the reversion of a mutant to the original phenotype
- back-up light — a light on the rear of a motor vehicle to warn others that the vehicle is being reversed
- badminton cup — a long refreshing drink of claret with soda water and sugar
- bank discount — interest on a loan deducted from the principal amount when the loan is made and based on the loan's face value
- barosinusitis — aerosinusitis.
- battle it out — If one group or person battles it out with another, they take part in a fight or contest against each other until one of them wins or a definite result is reached. You can also say that two groups or two people battle it out.
- battlecruiser — A large warship of a type built in the early 20th century, carrying similar armament to a battleship but faster and more lightly armored.
- be upstanding — (in a court of law) a direction to all persons present to rise to their feet before the judge enters or leaves the court
- be wild about — If you are wild about someone or something, you like them very much.
- beautifulness — having beauty; possessing qualities that give great pleasure or satisfaction to see, hear, think about, etc.; delighting the senses or mind: a beautiful dress; a beautiful speech.
- beauty editor — the person in charge of a section of newspaper or magazine devoted to cosmetics, etc
- beaux esprits — bel esprit
- beaux-esprits — plural of bel-esprit.