13-letter words containing o, r, a, i
- bachelor girl — a young unmarried woman, esp one who is self-supporting
- 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
- backwardation — the difference between the spot price for a commodity, including rent and interest, and the forward price
- bacteriocidal — Alternative spelling of bactericidal.
- bacteriogenic — Caused by bacteria.
- bacteriologic — a branch of microbiology dealing with the identification, study, and cultivation of bacteria and with their applications in medicine, agriculture, industry, and biotechnology.
- 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
- bacteriolytic — disintegration or dissolution of bacteria.
- bacteriophage — a virus that is parasitic in a bacterium and multiplies within its host, which is destroyed when the new viruses are released
- bacteriophagy — the action of a bacteriophage
- bacterioscopy — the examination of bacteria with a microscope.
- bacteriostats — Plural form of bacteriostat.
- bacteriotoxin — any toxin that kills bacteria
- bacterization — subjection to bacterial action
- bag of tricks — a container or receptacle of leather, plastic, cloth, paper, etc., capable of being closed at the mouth; pouch.
- baking powder — Baking powder is an ingredient used in cake making. It causes cakes to rise when they are in the oven.
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- balsamiferous — yielding or producing balsam
- 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
- banking hours — the hours during which a bank is open for business
- barbarossa ii — (Khair ed-Din) c1466–1546, Barbary pirate, born in Greece (brother of Barbarossa I).
- bargain offer — something for sale at a low price
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- barium yellow — a yellow, crystalline compound, BaCrO 4 , used as a pigment (barium yellow)
- 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.
- bartholinitis — Inflammation of Bartholin's cyst.
- bartholomew i — (Dimitrios Archontonis) born 1940, Archbishop of Constantinople and Ecumenical Patriarch of the Eastern Orthodox Church since 1991.
- barytocalcite — a mineral, double carbonate of calcium and barium, CaCO 3 ⋅BaCO 3 , usually found in veins of lead minerals.
- basic fortran — (language) A subset of Fortran.
- basic process — Military. basic training. a soldier or airman receiving basic training.
- 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
- baton twirler — someone who twirls a baton, esp a drum major or majorette
- batrachotoxin — a steroidal alkaloid, C31H42N2O6, found in the skin of certain Neotropical frogs (genus Phyllobates) and used on poison arrows: one of the most powerful natural neurotoxins known
- batting order — the sequence in which hitters will bat in a given game, determined in advance by the team manager.
- bazillionaire — (humorous) An incredibly rich person.
- be hard going — If you say that something is hard going, you mean it is difficult and requires a lot of effort.
- bearing sword — a large sword carried for its owner by a squire or servant because of its size.
- beauty editor — the person in charge of a section of newspaper or magazine devoted to cosmetics, etc
- 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.
- behaviourally — from a behavioural point of view