13-letter words containing a, s, t, o
- 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.
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- 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.
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- baal shem tov — original name Israel ben Eliezer ?1700–60, Jewish religious leader, teacher, and healer in Poland: founder of modern Hasidism
- baal-shem-tov — (Israel ben Eliezer"Besht") c1700–60, Ukrainian teacher and religious leader: founder of the Hasidic movement of Judaism.
- bachelorettes — Plural form of bachelorette.
- 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.
- 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.
- ballet lesson — a class in which ballet is taught
- ballet school — a school where professional ballet dancers are trained
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- bamboo shoots — the shoots of the bamboo plant, often used as food in Asian dishes
- bang goes sth — If you say bang goes something, you mean that it is now obvious that it cannot succeed or be achieved.
- bank discount — interest on a loan deducted from the principal amount when the loan is made and based on the loan's face value
- 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
- barcoo salute — a movement of the hand to brush flies away from the face
- baroreceptors — Plural form of baroreceptor.
- 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
- 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.
- 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
- 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 trombone — the lower-pitched of the two main types of trombone
- bass-baritone — a singer or voice in the bass range with baritone qualities
- batch-process — to perform batch processing on (files)
- battlegrounds — Plural form of battleground.
- be nuts about — to be greatly in love with
- beacon status — a ranking awarded by the government to an organization, rendering it eligible for extra funding, and aimed at encouraging organizations to share good practice with each other
- beast of prey — any animal that hunts other animals for food
- beat sb to it — If you intend to do something but someone beats you to it, they do it before you do.
- beauteousness — The state or quality of being beauteous.
- 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
- betamethasone — a synthetic analogue of a glucocorticoid, C 22 H 29 FO 5 , used in various forms in the treatment of inflammation, allergies, and tumors, and for replacement therapy in adrenal insufficiency.
- bibliolatrous — characterized by bibliolatry