13-letter words containing r, a, n, i
- 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.
- avant-gardism — the attitudes, techniques, etc., of the cultural avant-garde.
- averruncation — the act of averting or turning away
- award-winning — An award-winning person or thing has won an award, especially an important or valuable one.
- awe-inspiring — If you describe someone or something as awe-inspiring, you are emphasizing that you think that they are remarkable and amazing, although sometimes rather frightening.
- azerbaijanian — a native or inhabitant of Azerbaijan.
- back-breaking — Back-breaking work involves a lot of hard physical effort.
- backformation — Alternative spelling of back-formation.
- backgrounding — Present participle of background.
- backing group — a group of musicians providing an instrumental or vocal accompaniment for a pop singer
- backing store — a computer storage device, usually a disk, that provides additional storage space for information so that it can be accessed and referred to when required and may be copied into the processor if needed
- backing track — a recorded instrumental or vocal accompaniment for a pop singer or pop number
- backwardation — the difference between the spot price for a commodity, including rent and interest, and the forward price
- bacteriogenic — Caused by bacteria.
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- bacteriotoxin — any toxin that kills bacteria
- bacterization — subjection to bacterial action
- baggage train — a train of wagons carrying the equipment needed by an army on the march
- baking powder — Baking powder is an ingredient used in cake making. It causes cakes to rise when they are in the oven.
- balch springs — a town in NE Texas.
- ball and ring — a simplified bead-and-reel turning, used especially in English and American furniture of the 17th century.
- banana spider — a large, yellowish, tropical crab spider (Heteropoda venatoria) occasionally found in bunches of bananas shipped to the Temperate Zones
- banderilleros — Plural form of banderillero.
- bandicoot rat — any of three burrowing rats of the genera Bandicota and Nesokia, of S and SE Asia: family Muridae
- bandspreading — an additional tuning control in some radio receivers whereby a selected narrow band of frequencies can be spread over a wider frequency band, in order to give finer control of tuning
- banister back — a back of a chair or the like, usually having semicircular spindles between the top rail and the cross rail or seat.
- bank examiner — a public official appointed under U.S. state or federal laws to inspect and audit the operations and accounts of banks in the examiner's jurisdiction.
- banker's bill — a banknote
- banking hours — the hours during which a bank is open for business
- bar-and-grill — a place where food and alcoholic drinks are served to customers; a combined barroom and grillroom.
- bargain offer — something for sale at a low price
- bargain price — a low price
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- barnsbreaking — noisy and exuberant activity; boisterous mischief-making
- baroclinicity — a common state of fluid stratification in which surfaces of constant pressure and others of constant density are not parallel but intersect.
- baronial hall — a large building or room owned by a baron
- barosinusitis — aerosinusitis.
- barrel engine — an engine having cylinders arranged around and parallel to a shaft, which they rotate by means of the contact of their piston rods with a swash plate or cam on the shaft.
- barrier-nurse — to tend (infectious patients) in isolation, to prevent the spread of infection
- bartholinitis — Inflammation of Bartholin's cyst.
- basic fortran — (language) A subset of Fortran.
- basket dinner — a group social gathering, as of church members, to which participants contribute casseroles or other dishes to share.