13-letter words containing a, l, o, s
- 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.
- bachelor seal — a young male seal, esp a fur seal, that has not yet mated
- bachelorettes — Plural form of bachelorette.
- 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
- bail bondsman — an individual or firm that lends bail money to defendants awaiting trial
- 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
- balloon shade — a window shade that when raised is gathered into a series of puffy festoons created by inverted pleats in the fabric.
- balsam poplar — a poplar tree, Populus balsamifera, of NE North America, having resinous buds and broad heart-shaped leaves
- balsamiferous — yielding or producing balsam
- banderilleros — Plural form of banderillero.
- barbados aloe — a tropical aloe, Aloe barbadensis (or A. vera), of the lily family, having clusters of yellow flowers: its juice is used medicinally.
- barber's pole — a sign outside a barber's shop consisting of a pole painted with red and white spiral stripes
- barcoo salute — a movement of the hand to brush flies away from the face
- bartholinitis — Inflammation of Bartholin's cyst.
- base hospital — a hospital serving a large rural area
- base on balls — walk
- basel accords — the three sets of rules, Basel I, Basel II, and Basel III, for regulating the banking industry, drawn up by the Basel Committee on Banking Supervision
- baseline cost — the projected cost for an undertaking at the time it is budgeted
- 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.
- basso rilievo — bas-relief
- basso-relievo — bas-relief
- battlegrounds — Plural form of battleground.
- bay of naples — an inlet of the Tyrrhenian Sea in the SW coast of Italy
- beacon school — a notably successful school whose methods and practices are brought to the attention of the education service as a whole in order that they may be adopted by other schools
- beaked salmon — sandfish (def 2).
- beaked-salmon — sandfish (def 2).
- bibliolatrous — characterized by bibliolatry
- bibliophagist — a person who devours books
- bielsko-biala — a city in S Poland.
- bielsko-biała — a town in S Poland: created in 1951 by the union of Bielsko and Biała Krakowska; a leading textile centre since the 16th century. Pop: 356 000 (2005 est)
- bildungsroman — a novel concerned with a person's formative years and development
- bisectionally — from a bisectional point of view
- black section — (in Britain in the 1980s) an unofficial group within the Labour Party in any constituency that represented the interests of local Black people
- 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
- blasco ibanez — Vicente (biˈθente). 1867–1928, Spanish novelist, whose books include Blood and Sand (1909) and The Four Horsemen of the Apocalypse (1916)
- blasphemously — uttering, containing, or exhibiting blasphemy; irreverent; profane.
- blastogenesis — the theory that inherited characteristics are transmitted only by germ plasm
- blastomycosis — a fungal infection particularly affecting the lungs
- blepharoplast — a cylindrical cytoplasmic body in protozoa
- blepharospasm — spasm of the muscle of the eyelids, causing the eyes to shut tightly, either as a response to painful stimuli or occurring as a form of dystonia
- block release — the release of industrial trainees from work for study at a college for several weeks
- blood sausage — a kind of black sausage made from minced pork fat, pig's blood, and other ingredients
- blood-stained — stained with blood: a bloodstained knife.
- bloody caesar — a drink consisting of vodka, juice made from clams and tomatoes, and usually Worcester sauce and hot pepper sauce
- bloody sunday — (in Northern Ireland) 30th January 1972, when British soldiers shot dead thirteen marchers in Londonderry who were protesting against the UK government's policy of internment