13-letter words containing n, u, r, i
- antiquitarian — an admirer of the practices of antiquity
- antireligious — opposed to religious ideas, beliefs, and organizations
- antirheumatic — acting against rheumatism
- antiritualism — opposed to ritualism
- antiscorbutic — preventing or curing scurvy
- antisubmarine — (of weapons, missiles, etc) designed to combat or destroy submarines
- antisudorific — an antiperspirant.
- aphanipterous — of or relating to the wingless insects of the order Aphaniptera
- appropinquate — to approach
- appropinquity — nearness
- arachnivorous — Spider-eating.
- archie bunker — a poorly educated blue-collar worker, holding ultraconservative, racist, and male-chauvinist opinions.
- arcus senilis — an opaque circle around the cornea of the eye, often seen in elderly people
- argentiferous — containing or bearing silver
- argumentation — Argumentation is the process of arguing in an organized or logical way, for example in philosophy.
- argumentative — Someone who is argumentative is always ready to disagree or start quarrelling with other people.
- armamentarium — the items that comprise the material and equipment used by a physician in his professional practice
- arseniuretted — combined with arsenic so as to form an arsenide.
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arteriovenous — of, relating to, or affecting an artery and a vein
- articulations — Plural form of articulation.
- arundinaceous — resembling a reed
- astronautical — of or relating to astronautics or astronauts.
- atomic number — the number of protons in the nucleus of an atom of an element
- atrociousness — The state of being atrocious.
- attitudinizer — One who attitudinizes, or practises poses.
- attributional — of or relating to the act of attributing
- auctioneering — Present participle of auctioneer.
- audience room — a room for holding formal interviews or hearings.
- aum shinrikyo — a syncretistic Japanese cult combining elements of Buddhism, Hinduism, and Christianity, founded by Shoko Asahara in 1986; responsible for a number of murders and in particular a nerve-gas attack on the Tokyo underground in 1995
- australianism — the Australian national character or spirit
- australianize — (esp of a new immigrant) to adopt or cause to adopt Australian habits and attitudes; integrate into Australian society
- austrian pine — an evergreen tree, Pina nigra austriaca
- 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.
- 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.
- averruncation — the act of averting or turning away
- backgrounding — Present participle of background.
- backing group — a group of musicians providing an instrumental or vocal accompaniment for a pop singer
- banking hours — the hours during which a bank is open for business
- barosinusitis — aerosinusitis.
- barrier-nurse — to tend (infectious patients) in isolation, to prevent the spread of infection
- beehive round — an artillery shell that ejects thousands of naillike metal projectiles on exploding.
- benefit fraud — the illegal activity of claiming benefit payments which a person is not entitled to
- benito juarez — Benito (Pablo) [be-nee-taw pah-vlaw] /bɛˈni tɔ ˈpɑ vlɔ/ (Show IPA), 1806–72, president of Mexico 1857–72.
- berkeley unix — Berkeley Software Distribution
- bermuda onion — a large white or yellow onion with a mild flavor, grown in Texas, California, etc.
- bernoulli box — (storage) A high capacity storage device, Iomega Corporation's first popular product, that spins a mylar disk over a read-write head using the Bernoulli principle.