15-letter words containing e, n, r, o
- blow one's horn — to boast about oneself; brag
- bohemian forest — a mountain range between the SW Czech Republic and SE Germany. Highest peak: Arber, 1457 m (4780 ft)
- boiled dressing — a cooked salad dressing thickened with egg yolks and often containing mustard.
- bonheur-du-jour — a delicate fall-front desk of the late 18th and early 19th centuries.
- boolean algebra — a system of symbolic logic devised by George Boole to codify logical operations. It is used in computers
- booster cushion — an extra seat or cushion placed on an existing seat for a child to sit on in a car
- border incident — an incident, usually fighting, on a border between countries
- borderline case — a person or thing that is not clearly classifiable as something
- borough-english — (until 1925) a custom in certain English boroughs whereby the youngest son inherited land to the exclusion of his older brothers
- boston marriage — (especially in 19th-century New England) an intimate friendship between two women often maintaining a household together.
- boston massacre — an outbreak (1770) in Boston against British troops, in which a few citizens were killed
- boustrophedonic — of or relating to lines written in opposite directions
- box chronometer — a ship's chronometer, supported on gimbals in a wooden box
- boxer rebellion — a member of a Chinese secret society that carried on an unsuccessful uprising, 1898–1900 (Boxer Rebellion) principally against foreigners, culminating in a siege of foreign legations in Peking that was put down by an international expeditionary force.
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- branchiostegous — branchiostegal.
- brand extension — the practice of using a well-known brand name to promote new products or services in unrelated fields
- brave new world — If someone refers to a brave new world, they are talking about a situation or system that has recently been created and that people think will be successful and fair.
- bread and honey — money
- break-in period — a period during which certain restrictions or moderation in operating should be followed, as the avoidance of high speed, rapid acceleration, or severe braking for a new automobile.
- breakbone fever — dengue
- breakdown cover — insurance cover against breakdowns in a vehicle
- breakeven point — a point at which the total revenue and total cost are equal
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- breeding ground — If you refer to a situation or place as a breeding ground for something bad such as crime, you mean that this thing can easily develop in that situation or place.
- breeding season — the time of year during which animals breed
- bring into line — a mark or stroke long in proportion to its breadth, made with a pen, pencil, tool, etc., on a surface: a line down the middle of the page.
- bring to a head — to bring or be brought to a crisis
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- britneyfication — the effect on clothes and fashions of following the revealing styles favoured by the US pop singer Britney Spears (born 1981)
- brocken specter — an optical phenomenon sometimes occurring at high altitudes when the image of an observer placed between the sun and a cloud is projected on the cloud as a greatly magnified shadow.
- broken pediment — a pediment, as over a doorway or window, having its raking cornice interrupted at the crown or apex.
- brompheniramine — a substance, C 16 H 19 BrN 2 , used as an antihistamine in the management of various allergies, as hay fever.
- bronchial tubes — the bronchi or their smaller divisions
- bronze diabetes — hemochromatosis.
- bronzed grackle — the western subspecies of the American bird, the common grackle, Quiscalus quiscula versicolor, having bronzy, iridescent plumage.
- bronzing powder — the powder used in bronzing, consisting of alloys of bronze or brass
- brooklyn bridge — a suspension bridge over the East River, in New York City, connecting Manhattan and Brooklyn: built 1867–84. 5989 feet (1825 meters) long.
- brooklyn center — a city in SE Minnesota, near Minneapolis.
- brother-in-arms — a fellow soldier or comrade in a shared struggle
- brown-and-serve — requiring only a brief period of browning, as in an oven, before being ready to serve: brown-and-serve rolls.
- brownfield site — a disused site envisaged for redevelopment
- bucket conveyor — a conveyor consisting of an endless chain with a series of buckets attached at regular intervals, used for moving ore, gravel, grain, or other bulk materials.
- buffer solution — a solution to which a salt of a weak acid or base has been added
- building worker — a labourer, bricklayer, etc who works in the construction industry
- bulimia nervosa — a disorder characterized by compulsive overeating followed by vomiting: sometimes associated with anxiety about gaining weight
- bullnose header — bull header (def 1).
- bullnose-header — Also called bullnose header. a brick having one of the edges across its width rounded for laying as a header in a sill or the like.
- burden of proof — The burden of proof is the task of proving that you are correct, for example when you have accused someone of a crime.
- bureau of mines — a division of the Department of the Interior, created in 1910, that studies the nation's mineral resources and inspects mines.