12-letter words containing a, l, i, u
- bermuda lily — a lily, Lilium longiflorum eximium, having white, funnel-shaped flowers, cultivated especially as an Easter lily.
- bi-quarterly — occurring twice in each quarter of a year.
- biarticulate — having two joints, as the antennae of certain insects.
- biauriculate — having two auricles or earlike parts
- bifunctional — having two functions
- bilingualism — Bilingualism is the ability to speak two languages equally well.
- bilinguality — the ability to speak two languages fluently.
- billiard cue — a long cue used for playing billiards
- binocularity — binocular characteristics
- biomolecular — relating to a biomolecule
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- black muslim — a member of the Black Muslims
- black-figure — pertaining to or designating a style of vase painting developed in Greece in the 7th and 6th centuries b.c., chiefly characterized by silhouetted figures painted in black slip on a red clay body, details incised into the design, and a two-dimensional structure of form and space.
- blastulation — the process of blastula formation
- blaue reiter — der Blaue Reiter. a group of German expressionist painters formed in Munich in 1911, including Kandinsky and Klee, who sought to express the spiritual side of man and nature, which they felt had been neglected by impressionism
- blue catfish — a large freshwater catfish, Ictalurus furcatus, that is a popular food fish in the states of the Mississippi River valley.
- blue jasmine — a southern U.S. shrubby vine, Clematis crispa, of the buttercup family, having solitary, bell-shaped, blue or bluish-purple to pink flowers and bearing fruit with silky appendages.
- bluefin tuna — the largest tuna (Thunnus thynnus): it has bright red flesh and is important as a game and food fish
- blues guitar — blues guitar music
- bluesnarfing — the practice of using one Bluetooth-enabled mobile phone to steal contact details, ring tones, images, etc from another
- boatbuilding — Boatbuilding is the craft or industry of making boats.
- boudin blanc — a boiled sausage made with light-colored meat, as veal or chicken, and without blood
- bougainville — an island in the W Pacific, in Papua New Guinea: the largest of the Solomon Islands: unilaterally declared independence in 1990; occupied by government troops in 1992, and granted autonomy in 2001. Chief town: Kieta. Area: 10 049 sq km (3880 sq miles)
- boulangerite — a bluish lead-gray mineral, lead antimony sulfide, Pb 5 Sb 4 S 11 , a minor ore of lead.
- boulevardier — (originally in Paris) a fashionable man, esp one who frequents public places
- bridal suite — a room or set of rooms in a hotel for newly married couples
- brushability — the quality of being brushable
- buccolingual — of or relating to the cheek and tongue.
- buffalo bill — nickname of William Frederick Cody. 1846–1917, US showman who toured Europe and the US with his famous Wild West Show
- buffalo bird — a cowbird, Molothrus ater, of North America.
- buffalo fish — any of a genus (Ictiobus) of large, humpbacked, freshwater sucker fishes found in North America
- bulk carrier — a ship that carries unpackaged cargo, usually consisting of a single dry commodity, such as coal or grain
- bull mastiff — a large powerful breed of dog with a short usually fawn or brindle coat, developed by crossing the bulldog with the mastiff
- bull-baiting — the setting of dogs on a chained or confined bull, formerly a popular pastime in England
- bullet train — a passenger train that travels at very high speed
- bur marigold — any plant of the genus Bidens that has yellow flowers and pointed fruits that cling to fur and clothing: family Asteraceae (composites)
- burial mound — a barrow
- burj khalifa — a slender tapering skyscraper in Dubai; completed in 2009; the world's tallest man-made structure, standing at 828m (2716 ft)
- burro's tail — a succulent Mexican plant, Sedum morganianum, of the stonecrop family, bearing small, rose-colored flowers and long, hanging, nearly cylindrical stems with closely packed whitish-green leaves.
- bushy-tailed — bright-eyed and bushy-tailed, fresh, alert, eager, and lively
- button quail — any small quail-like terrestrial bird of the genus Turnix, such as T. sylvatica (striped button quail), occurring in tropical and subtropical regions of the Old World: family Turnicidae, order Gruiformes (cranes, rails, etc)
- byelorussian — Byelorussian means belonging or relating to Byelorussia or to its people or culture.
- cadmium cell — a photocell with a cadmium electrode that is especially sensitive to ultraviolet radiation
- cafe au lait — coffee with milk
- calamitously — In a calamitous manner.
- calculations — Plural form of calculation.
- caliper rule — a graduated rule with one sliding jaw and one that is stationary
- calixtus iii — (Alfonso de Borja; Alfonso Borgia) 1378–1458, Spanish ecclesiastic: pope 1455–58.
- callistus ii — died 1124, French ecclesiastic: pope 1119–24.
- calreticulin — (protein) A multifunctional protein that binds calcium ions.