13-letter words containing o, s, i
- autoeroticism — the arousal and use of one's own body as a sexual object, as through masturbation
- automechanism — an automatic mechanical system or component, especially a device that operates automatically under predetermined conditions.
- 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.
- baby primrose — a tender primrose, Primula forbesii, native to China and Burma, having white, hairy leaves and rose- or lilac-colored flowers with a yellow center.
- back emission — the secondary emission of electrons from an anode
- backbone site — A key Usenet, electronic mail and/or Internet site; one that processes a large amount of third-party traffic, especially if it is the home site of any of the regional coordinators for the Usenet maps. Notable backbone sites as of early 1993 include uunet and the mail machines at Rutgers University, UC Berkeley, DEC's Western Research Laboratories, Ohio State University and the University of Texas. Compare rib site, leaf site.
- 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
- bacteriolysis — the destruction or disintegration of bacteria
- bacterioscopy — the examination of bacteria with a microscope.
- bacteriostats — Plural form of bacteriostat.
- bag of tricks — a container or receptacle of leather, plastic, cloth, paper, etc., capable of being closed at the mouth; pouch.
- bail bondsman — an individual or firm that lends bail money to defendants awaiting trial
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- balsamiferous — yielding or producing balsam
- banderilleros — Plural form of banderillero.
- bank discount — interest on a loan deducted from the principal amount when the loan is made and based on the loan's face value
- bank of issue — a bank, as a Federal Reserve Bank, empowered by a government to issue currency.
- banking hours — the hours during which a bank is open for business
- banking house — a more formal term for a bank
- barbarossa ii — (Khair ed-Din) c1466–1546, Barbary pirate, born in Greece (brother of Barbarossa I).
- barosinusitis — aerosinusitis.
- bartholinitis — Inflammation of Bartholin's cyst.
- base hospital — a hospital serving a large rural area
- baseline cost — the projected cost for an undertaking at the time it is budgeted
- basic fortran — (language) A subset of Fortran.
- basic process — Military. basic training. a soldier or airman receiving basic training.
- basidiomycete — any fungus of the phylum Basidiomycota (formerly class Basidiomycetes), in which the spores are produced in basidia. The group includes boletes, puffballs, smuts, and rusts
- basidiospores — Plural form of basidiospore.
- bass-baritone — a singer or voice in the bass range with baritone qualities
- basso rilievo — bas-relief
- basso-relievo — bas-relief
- bay of biscay — a large bay of the Atlantic Ocean between W France and N Spain: notorious for storms
- be one's life — If you say that something or someone is your life, you are emphasizing that they are extremely important to you.
- be witness to — If you are witness to something, you see it happen.
- bearing sword — a large sword carried for its owner by a squire or servant because of its size.
- beat sb to it — If you intend to do something but someone beats you to it, they do it before you do.
- bedroom suite — a set of furniture, including such things as a bed, wardrobe, chest of drawers, cabinet, etc
- bedtime story — a story read or told to a child at bedtime
- beehive house — a prehistoric circular building found in various parts of Europe, usually of stone and having a dome-shaped roof
- behavioristic — the theory or doctrine that human or animal psychology can be accurately studied only through the examination and analysis of objectively observable and quantifiable behavioral events, in contrast with subjective mental states.
- beige toaster — Macintosh
- belongingness — the human state of being an essential part of something
- bible society — a Christian organization devoted to the printing and distribution of the Bible.
- bibliogenesis — the art of producing and publishing books.
- bibliolatrous — characterized by bibliolatry