13-letter words containing r, o, s, a, l
- arshile gorky — Arshile [ahr-sheel] /ˈɑr ʃil/ (Show IPA), (Vosdanig Adoian) 1904–48, American painter, born in Armenia.
- articulations — Plural form of articulation.
- asexual spore — a spore that is the result of asexual reproduction
- aspergillosis — a rare fungal infection, esp of the mucous membranes or lungs, caused by various species of Aspergillus
- aspirationals — Plural form of aspirational.
- assembly room — a room used as a public place of entertainment, usually dating from the eighteenth or nineteenth century
- assortatively — In an assortative way.
- assyriologist — A person who studies ancient Assyria.
- aster yellows — a dwarfing and yellowing of asters and various other plants, caused by a mycoplasma transmitted by a leafhopper.
- asteroid belt — the concentrations of asteroids that move around the sun mainly between the orbits of Mars and Jupiter
- astronautical — of or relating to astronautics or astronauts.
- astroparticle — (astrophysics) A subatomic particle of cosmic origin.
- astrophysical — Of or pertaining to astrophysics.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atrabilarious — Characterized by melancholy or gloom.
- atroceruleous — a deep blue-black color.
- 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
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- 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.
- 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
- 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.
- bibliolatrous — characterized by bibliolatry
- bildungsroman — a novel concerned with a person's formative years and development
- 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
- 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
- bloody caesar — a drink consisting of vodka, juice made from clams and tomatoes, and usually Worcester sauce and hot pepper sauce
- blue copperas — a salt, copper sulfate, CuSO 4 ⋅5H 2 O, occurring naturally as large transparent, deep-blue triclinic crystals, appearing in its anhydrous state as a white powder: used chiefly as a mordant, insecticide, fungicide, and in engraving.
- blue grosbeak — a grosbeak, Guiraca caerulea, of the U.S., Mexico, and Central America, the male of which is blue with two rusty bars on each wing.
- booster cable — either of a pair of electric cables having clamps at each end and used for starting the engine of a vehicle whose battery is dead.
- bosman ruling — an EU ruling that allows out-of-contract footballers to leave their clubs without the clubs receiving a transfer fee
- bottle-washer — a menial or factotum
- boutros-ghali — ˈBoutros (ˈbutroʊs ) ; bo̅oˈtrōs) 1922- ; Egypt. diplomat: secretary-general of the United Nations (1992-96)
- bridal shower — a party, held for a woman before her wedding, to which her friends bring gifts
- bristol board — a heavy smooth cardboard of fine quality, used for printing and drawing
- broadly based — Something that is broadly based involves many different kinds of things or people.