13-letter words containing a, r, t, s
- 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
- austroasiatic — a family of languages spoken in SE Asia and the landsaround the Bay of Bengal and consisting principally of Vietnamese, Khmer, Mon, Khasi, Nicobarese, and the Munda languages.
- authorisation — Alternative spelling of authorization.
- auto-destruct — self-destruct.
- autocatharsis — a therapeutic process designed to free unconscious disturbances by having the patient write about his or her experiences, impressions, etc.
- autoeroticism — the arousal and use of one's own body as a sexual object, as through masturbation
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- autorickshaws — Plural form of autorickshaw.
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- avant-gardism — the attitudes, techniques, etc., of the cultural avant-garde.
- baby snatcher — a person who steals a baby from its pram
- baby's-breath — a tall Eurasian caryophyllaceous plant, Gypsophila paniculata, bearing small white or pink fragrant flowers
- bachelorettes — Plural form of bachelorette.
- back straight — a straight part of a circuit, esp of an athletics track or a racecourse, furthest from the finishing point
- 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
- backscratcher — an implement with a long handle, used for scratching one's back
- 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.
- bag of waters — a fluid-filled membranous sac in the pregnant uterus that encloses and cushions the fetus, normally breaking at or just before the time of birth; the amnion.
- baggagemaster — a person employed, especially by a railroad, bus company, or steamship line, to take charge of passengers' baggage.
- baker's yeast — a yeast (Saccharomyces cerevisiae) used in baking as a leavening, as for certain breads
- ballet master — a man who teaches and rehearses the dancers in a ballet company
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- baluster stem — a stem of a drinking glass or the like having a gradual swelling near the top or bottom.
- banbury tarts — small baked pastries filled with raisins, currants, etc.
- 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
- 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 transfer — a payment between two bank accounts
- barbary coast — coastal region of N Africa, extending from Egypt to the Atlantic, inhabited chiefly by Berbers and once (until early 19th cent.) dominated by pirates
- barber's itch — any of various fungal infections of the bearded portion of the neck and face
- barcoo salute — a movement of the hand to brush flies away from the face
- barley stripe — a disease of barley, characterized by blighted heads and chlorotic, brown, or frayed stripes on the leaves, caused by a fungus, Helminthosporium gramineum.
- baroreceptors — Plural form of baroreceptor.
- barosinusitis — aerosinusitis.
- barrel cactus — any of several large, cylindrical, ribbed, spiny cacti of the genera Echinocactus and Ferocactus.
- barristership — the office of a barrister
- 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.
- basket dinner — a group social gathering, as of church members, to which participants contribute casseroles or other dishes to share.
- basket flower — a composite plant, Centaurea americana, of central U.S. to Mexico, having raylike heads of tubular rose-colored flowers, each surrounded by a whorl of bracts making the flower head appear as if it is set in a basket.
- bass clarinet — a clarinet with the lowest range, in the octave below the B-flat clarinet
- 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
- bastard amber — a color of gelatin commonly used in stage lighting, similar to light amber but having a pinkish cast.