13-letter words containing a, b, u, r
- burglariously — in the manner of a burglar or buglary
- burial ground — A burial ground is a place where bodies are buried, especially an ancient place.
- buridan's ass — an example intended to show the deficiency of reason. An ass standing equidistant from two identical heaps of oats starves to death because reason provides no grounds for choosing to eat one rather than the other
- burmese glass — an American art glass of the late 19th century, ranging from greenish-yellow to pink.
- burnham scale — the salary scale for teachers in English state schools, which is revised periodically
- burning glass — a convex lens for concentrating the sun's rays into a small area to produce heat or fire
- burt standish — Burt L. pseudonym of Gilbert Patten.
- bus mastering — bus master
- business card — A person's business card or their card is a small card which they give to other people, and which has their name and details of their job and company printed on it.
- business park — an area specially designated and landscaped to accommodate business offices, warehouses, light industry, etc
- bustard quail — button quail.
- bustard-quail — any of several birds of the family Turnicidae, of warmer parts of the Old World, resembling but not related to the true quail. Also called bustard quail, hemipode.
- buster collar — a round collar, similar to a lampshade in shape, that is fitted round the neck of an animal or bird, for example to prevent it removing or interfering with a dressing or other treatment
- busto arsizio — a city in Lombardy, N Italy.
- butch haircut — a short haircut for men, similar to a crew cut.
- butcher paper — heavy, moisture-resistant paper, as used for wrapping meat.
- butcher's saw — a type of hacksaw used especially by butchers for cutting through meat and bones.
- butler's tray — a tray resting on or attached to an X-shaped, often folding stand, on which are kept drink bottles and glasses
- butterfly pea — any of several leguminous plants of the genus Clitoria, as C. mariana, of North America, having pale-blue flowers.
- butyraldehyde — a colourless flammable pungent liquid used in the manufacture of resins. Formula: CH3(CH2)2CHO
- buzzard's bay — an inlet of the Atlantic, in SE Massachusetts. 30 miles (48 km) long.
- by its nature — If you say that something has a particular characteristic by its nature or by its very nature, you mean that things of that type always have that characteristic.
- by reputation — If you know someone by reputation, you have never met them but you have heard of their reputation.
- by-your-leave — a request for permission (esp in the phrase without so much as a by-your-leave)
- cab rank rule — the rule that obliges barristers to take on any client in strict rotation
- cabin cruiser — A cabin cruiser is a motor boat which has a cabin for people to live or sleep in.
- carbon tissue — a sheet of paper coated with pigmented gelatine, used in the carbon process
- carbon-tissue — paper faced with a preparation of carbon or other material, used between two sheets of plain paper in order to reproduce on the lower sheet that which is written or typed on the upper.
- carboniferous — yielding coal or carbon
- carbonium ion — type of positively charged organic ion
- carbonneutral — pertaining to or having achieved a state in which the net amount of carbon dioxide or other carbon compounds emitted into the atmosphere is reduced to zero because it is balanced by actions to reduce or offset these emissions: Since the administration installed solar panels, the campus has become carbon neutral; a carbon-neutral brewery.
- carburization — Impregnation or reaction with carbon, especially in the manufacture of steel.
- caribou inuit — a member of any of the Inuit peoples who formerly inhabited the Barren Lands of N Canada
- casual labour — people who are employed on a temporary, rather than a permanent or regular basis
- cause celebre — A cause célèbre is an issue, person, or criminal trial that has attracted a lot of public attention and discussion.
- cerulean blue — a light-blue to strong greenish-blue color.
- cetane number — a measure of the quality of a diesel fuel expressed as the percentage of cetane in a mixture of cetane and 1-methylnapthalene of the same quality as the given fuel
- chamber music — Chamber music is classical music written for a small number of instruments.
- chateaubriand — François René (frɑ̃swa rəne), Vicomte de Chateaubriand. 1768–1848, French writer and statesman: a precursor of the romantic movement in France; his works include Le Génie du Christianisme (1802) and Mémoires d'outre-tombe (1849–50)
- chub mackerel — a small mackerel, Scomber japonicus, of Atlantic and Pacific seas and parts of the Indian Ocean.
- circuit board — A circuit board is the same as a printed circuit board.
- circumambages — round-about methods
- circumambient — surrounding
- circumorbital — (anatomy) Around the eye.
- clair-obscure — chiaroscuro.
- clare-obscure — chiaroscuro.
- claustrophobe — a person who suffers from claustrophobia.
- cloud chamber — an apparatus for detecting high-energy particles by observing their tracks through a chamber containing a supersaturated vapour. Each particle ionizes molecules along its path and small droplets condense on them to produce a visible track
- coachbuilders — Plural form of coachbuilder.
- cobaltiferous — containing cobalt