12-letter words containing u, d, o
- backgrounder — A backgrounder is a short article in a newspaper or magazine that provides background information about a particular subject.
- banner cloud — a plume-shaped cloud extending downwind from an isolated mountain peak. Also called cloud banner. Compare cap cloud (def 1).
- barbados nut — an ornamental, tropical American tree, Jatropha curcas, of the spurge family, having ivylike leaves, small, yellow or greenish-yellow flowers, and olive-shaped fruit yielding a purgative, poisonous oil.
- bardolatrous — relating to or characterized by bardolatry
- barium oxide — a white or yellowish-white poisonous heavy powder used esp as a dehydrating agent. Formula: BaO
- basset hound — A basset hound is a dog with short strong legs, a long body, and long ears. It is kept as a pet or used for hunting.
- battleground — A battleground is the same as a battlefield.
- bay of fundy — an inlet of the Atlantic in SE Canada, between S New Brunswick and W Nova Scotia: remarkable for its swift tides of up to 21 m (70 ft)
- beardtongues — Plural form of beardtongue.
- bed moulding — a moulding in an entablature between the corona and the frieze
- belleau wood — a forest in N France: site of a battle (1918) in which the US Marines halted a German advance on Paris
- below ground — If something is below ground or below the ground, it is in the ground.
- beurre fondu — melted butter.
- beyond doubt — You say that something is beyond doubt or beyond reasonable doubt when you are certain that it is true and it cannot be contradicted or disproved.
- big-sounding — meant to be impressive in scale
- billow cloud — a cloud consisting of broad, parallel bands oriented perpendicularly to the wind.
- biohazardous — a pathogen, especially one used in or produced by biological research.
- bird's mouth — a right-angled notch cut in the underside of a rafter for fitting over a longitudinal member, as a wall plate.
- blood supply — the flow of blood to different parts of the body
- blood volume — the total quantity of blood in the body
- bloodcurdler — something causing great fright or horror: a bloodcurdler of a mystery novel.
- bloodsucking — any animal that sucks blood, especially a leech.
- blue dogwood — a shrub or small tree, Cornus alternifolia, of eastern North America, having clusters of white flowers and bluish fruit.
- blue-blooded — A blue-blooded person is from a royal or noble family.
- boarding out — the local-authority practice of placing a client in a foster family or voluntary establishment and paying for it
- boatbuilding — Boatbuilding is the craft or industry of making boats.
- bodybuilding — Bodybuilding is the activity of doing special exercises regularly in order to make your muscles grow bigger.
- border guard — a guard stationed on a border between countries
- bottle gourd — an Old World cucurbitaceous climbing plant, Lagenaria siceraria, having large hard-shelled gourds as fruits
- bottom round — a cut of beef taken from outside the round, which is below the rump and above the upper leg.
- boudin blanc — a boiled sausage made with light-colored meat, as veal or chicken, and without blood
- boulder clay — an unstratified glacial deposit consisting of fine clay, boulders, and pebbles
- boulevardier — (originally in Paris) a fashionable man, esp one who frequents public places
- bound charge — any electric charge that is bound to an atom or molecule (opposed to free charge).
- bounden duty — duty one has a moral obligation to perform
- brassfounder — a person who makes things from brass
- break ground — to do something that has not been done before
- bridge house — a deckhouse including a bridge or bridges for navigation.
- bring around — If you bring someone around when they are unconscious, you make them become conscious again.
- broad church — You can refer to an organization, group, or area of activity as a broad church when it includes a wide range of opinions, beliefs, or styles.
- broad jumper — a participant in the long jump.
- brush border — a layer of tightly packed minute finger-like protuberances on cells that line absorptive surfaces, such as those of the intestine and kidney
- bud mutation — a variation produced by a genetic alteration in the bud such that the seeds produced by the resulting growth perpetuate the change in succeeding generations.
- buffalo bird — a cowbird, Molothrus ater, of North America.
- bulk modulus — a coefficient of elasticity of a substance equal to minus the ratio of the applied stress (p) to the resulting fractional change in volume (dV/V) in a specified reference state (dV/V is the bulk strain)
- bulldog clip — A bulldog clip is a metal clip with a spring lever that opens and closes two flat pieces of metal. It is used for holding papers together.
- bullet wound — a wound made by a bullet
- buoyancy aid — a type of usually foam-filled lifejacket designed for use in sports such as canoeing
- 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