13-letter words containing u, n, r
- astronautical — of or relating to astronautics or astronauts.
- at every turn — If you say that something happens at every turn, you are emphasizing that it happens frequently or all the time, usually so that it prevents you from achieving what you want.
- 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.
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- averruncation — the act of averting or turning away
- backgrounders — Plural form of backgrounder.
- backgrounding — Present participle of background.
- backing group — a group of musicians providing an instrumental or vocal accompaniment for a pop singer
- banbury tarts — small baked pastries filled with raisins, currants, etc.
- bancassurance — the selling of insurance products by a bank to its customers
- band spectrum — a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules
- banded purple — any color having components of both red and blue, such as lavender, especially one deep in tone.
- banking hours — the hours during which a bank is open for business
- bankrupt worm — a roundworm (genus Trichostrongylus) that is an intestinal parasite of birds and mammals, especially devastating to young livestock.
- barbarousness — The state or quality of being barbarous.
- baroque organ — a pipe organ dating from or built to the specifications of the baroque period at the time of J. S. Bach.
- barosinusitis — aerosinusitis.
- barrier-nurse — to tend (infectious patients) in isolation, to prevent the spread of infection
- baryon number — the number of baryons in a system minus the number of antibaryons
- battlegrounds — Plural form of battleground.
- bbn butterfly — (computer) A supercomputer developed at BBN Technologies, named after the "butterfly" multi-stage switching network around which it was built. It could have up to 512 CPUs connected to allow every CPU access to every other CPU's memory, albeit with about 15 times the latency than for its own. The earlier GP-1000 models used up to 256 Motorola 68020s. The later TC-2000 models used up to 512 Motorola 88100s. Language developed for, or ported to, the BBN Butterfly were Butterfly Common LISP, Butterfly Scheme, Delirium, and MultiScheme.
- beehive round — an artillery shell that ejects thousands of naillike metal projectiles on exploding.
- beleaguerment — a blockade or siege
- 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.
- benzoyl group — the univalent group C 7 H 5 O–, derived from benzoic acid.
- 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.
- beyond number — too numerous to be counted
- bildungsroman — a novel concerned with a person's formative years and development
- binary number — a number expressed in binary notation, as 1101.101 = 1 × 23 + 1 × 22 + 0 × 21 + 1 × 20 + 1 × 2–1 + 0 × 2–2 + 1 × 2–3 = 13 5⁄8
- binary pulsar — a pulsar in a binary system.
- bird dismount — Hecht1 (def 1).
- birectangular — having two right angles.