15-letter words containing r, u, t, a
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- autotransformer — a transformer in which part of the winding is common to both primary and secondary circuits
- autotransfusion — a process in which a patient receives some of his or her own blood in a transfusion rather than a donor's blood
- autotransplants — Plural form of autotransplant.
- autotrophically — through an autotrophic process
- auxiliary rotor — the tail rotor of a helicopter, used for directional and rotary control
- backup rotation — (operating system) Any system for re-using backup media, e.g. magnetic tape. One extreme would be to use the same media for every backup (e.g. copy disk A to disk B), the other extreme would be to use new media every time. The trade-off is between the cost of buying and storing media and the ability to restore any version of any file. One example is the Grandfather, Father, Son (GFS) scheme.
- backup software — (tool, software) Software for doing a backup, often included as part of the operating system. Backup software should provide ways to specify what files get backed up and to where. It may include its own scheduling function to automate the procedure or, preferably, work with generic scheduling facilities. It may include facilities for managing the backup media (e.g. maintaining an index of tapes) and for restoring files from backups. Examples are Unix's dump command and Windows's ntbackup.
- bacteriophagous — Pertaining to the predation and consumption of bacterium.
- badminton court — the court on which games of badminton are played
- bangtail muster — a roundup of cattle to be counted, each one having the hairs on its tail docked as it is counted
- banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
- barbituric acid — a white crystalline solid used in the preparation of barbiturate drugs. Formula: C4H4N2O3
- bargain counter — a store counter on which goods are displayed for sale at reduced prices
- bargain-hunting — the act of shopping for items sold at cheap, esp discounted, prices
- bargaining unit — a specific group of employees who are covered by the same collective agreement or set of agreements and represented by the same bargaining agent or agents
- barium chromate — a yellow, crystalline compound, BaCrO 4 , used as a pigment (barium yellow)
- barium stearate — a white, crystalline, water-insoluble solid, Ba(C 18 H 35 O 2) 2 , used chiefly as a waterproofing agent and as a lubricant.
- barium sulphate — a white insoluble fine dense powder, used as a pigment, as a filler for paper, rubber, etc, and in barium meals. Formula: BaSO4
- barium titanate — a crystalline ceramic used in capacitors and piezoelectric devices. Formula: BaTiO3
- barry mountains — a mountain range in SE Australia, in E Victoria: part of the Australian Alps
- basic autocoder — Early system on IBM 7070. Listed in CACM 2(5):16 (May 1959).
- bathurst island — an island off the coast of N Nunavut, Canada, in the Arctic Archipelago: present south of the North Magnetic Pole nearby. 7609 sq. mi. (19,707 sq. km).
- bayeux tapestry — an 11th- or 12th-century embroidery in Bayeux, nearly 70.5 m (231 ft) long by 50 cm (20 inches) high, depicting the Norman conquest of England
- beam-power tube — a vacuum tube in which the stream of electrons flowing to the plate is focused by the action of a set of auxiliary, charged elements, giving an increase in output power.
- bearded vulture — lammergeier
- beast of burden — A beast of burden is an animal such as an ox or a donkey that is used for carrying or pulling things.
- benzyl butyrate — a liquid, C 11 H 14 O 2 , having a fruitlike odor, used as a plasticizer and in flavoring.
- bernoulli trial — one of a sequence of independent experiments each of which has the same probability of success, such as successive throws of a die, the outcome of which is described by a binomial distribution
- bioastronautics — the study of the effects of space flight on living organisms
- blue wood aster — a composite plant, Aster cordifolius, of North America, having heart-shaped leaves and pale-blue flowers.
- bluegrass state — Kentucky (used as a nickname).
- brachystomatous — having a short proboscis, as certain insects.
- brake parachute — a parachute attached to the rear of a vehicle and opened to assist braking
- branchiostegous — branchiostegal.
- breach of trust — a violation of duty by a trustee or any other person in a fiduciary position
- break the mould — If you say that someone breaks the mould, you mean that they do completely different things from what has been done before or from what is usually done.
- break-out group — a group of people who detach themselves from a larger group or meeting in order to hold separate discussions
- bronchial tubes — the bronchi or their smaller divisions
- brushback pitch — a fast ball deliberately thrown at or too near a batter's head
- brussels carpet — a worsted carpet with a heavy pile formed by uncut loops of wool on a linen warp
- bucket elevator — a chain of buckets for raising liquids or materials to a higher level
- buffalo currant — an ornamental shrub, Ribes odoratum, of the central U.S., having showy, drooping clusters of fragrant yellow flowers and edible black fruit.
- building trades — the trades and professions concerned with the creation and finishing of buildings, such as carpenters, plasterers, masons, electricians, etc.
- bullock's heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- bullock's-heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- buried treasure — A surprising piece of code found in some program. While usually not wrong, it tends to vary from crufty to bletcherous, and has lain undiscovered only because it was functionally correct, however horrible it is. Used sarcastically, because what is found is anything *but* treasure. Buried treasure almost always needs to be dug up and removed. "I just found that the scheduler sorts its queue using bubble sort! Buried treasure!"
- burt l standish — Burt L. pseudonym of Gilbert Patten.
- buryat republic — a constituent republic of SE central Russia, on Lake Baikal: mountainous, with forests covering over half the total area. Capital: Ulan-Ude. Pop: 981 000 (2002). Area: 351 300 sq km (135 608 sq miles)
- butler's pantry — a pantry in a large house where crockery, glassware, cutlery, etc is kept