13-letter words containing a, r, o, n, s
- athenagoras i — (Aristocles Spyrou) 1886–1972, Archbishop Ecumenical of Constantinople and Ecumenical Patriarch of the Greek Orthodox Church 1948–72.
- atherogenesis — (medicine) The formation of atheromas, especially on the walls of the arteries.
- atrociousness — The state of being atrocious.
- 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
- authorisation — Alternative spelling of authorization.
- 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
- backgrounders — Plural form of backgrounder.
- 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
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- baker's dozen — thirteen
- banderilleros — Plural form of banderillero.
- banking hours — the hours during which a bank is open for business
- barbarousness — The state or quality of being barbarous.
- barosinusitis — aerosinusitis.
- bartholinitis — Inflammation of Bartholin's cyst.
- basement-rock — the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.
- basic fortran — (language) A subset of Fortran.
- bass response — the response of an audio reproduction system or component to low frequencies
- bass trombone — the lower-pitched of the two main types of trombone
- bass-baritone — a singer or voice in the bass range with baritone qualities
- battlegrounds — Plural form of battleground.
- bearing sword — a large sword carried for its owner by a squire or servant because of its size.
- bildungsroman — a novel concerned with a person's formative years and development
- blamestorming — a discussion or meeting for the purpose of assigning blame.
- blarney stone — a stone in Blarney Castle, in the SW Republic of Ireland, said to endow whoever kisses it with the gift of the gab and skill in flattery
- boarding fees — fees paid for boarding at a school
- boarding pass — A boarding pass is a card that a passenger must have when boarding a plane or a boat.
- boardinghouse — a private house in which accommodation and meals are provided for paying guests
- body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
- boraginaceous — of, relating to, or belonging to the Boraginaceae, a family of temperate and tropical typically hairy-leaved flowering plants that includes forget-me-not, lungwort, borage, comfrey, and heliotrope
- borna disease — viral disease found in mammals, esp horses
- bosman ruling — an EU ruling that allows out-of-contract footballers to leave their clubs without the clubs receiving a transfer fee
- boston matrix — a two-dimensional matrix, used in planning the business strategy of a large organization, that identifies those business units in the organization that generate cash and those that use it
- boundary scan — The use of scan registers to capture state from device input and output pins. IEEE Standard 1149.1-1990 describes the international standard implementation (sometimes called JTAG after the Joint Test Action Group which began the standardisation work).
- bowman's root — an eastern U.S. plant, Gillenia trifoliata, of the rose family, having terminal clusters of white flowers.
- brain surgeon — a surgeon who specializes in brain surgery
- brainstorming — intensive discussion to solve problems or generate ideas
- branded goods — goods that are identifiable as being the product of a particular manufacturer or marketing company
- brass foundry — a foundry that makes things from brass
- brassfounding — the practice of making things from brass
- bring to pass — to cause to happen
- brown mustard — black mustard. See under mustard (def 2).
- by contraries — contrary to what is expected
- camerapersons — Plural form of cameraperson.
- candleholders — Plural form of candleholder.
- carbon offset — a compensatory measure made by an individual or company for carbon emissions, usually through sponsoring activities or projects which increase carbon dioxide absorption, such as tree planting
- carbon tissue — a sheet of paper coated with pigmented gelatine, used in the carbon process
- carbon-tissue — paper faced with a preparation of carbon or other material, used between two sheets of plain paper in order to reproduce on the lower sheet that which is written or typed on the upper.
- carboniferous — yielding coal or carbon