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18-letter words containing b, r, a, t

  • neural tube defect — any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development.
  • nobiliary particle — a preposition forming part of a title of nobility or surname, as French de or German von.
  • non-understandable — capable of being understood; comprehensible.
  • noninterchangeable — That cannot be interchanged with another.
  • north attleborough — a city in SE Massachusetts.
  • northeast by north — a point on the compass 11°15′ north of northeast. Abbreviation: NEbN.
  • not breathe a word — to take air, oxygen, etc., into the lungs and expel it; inhale and exhale; respire.
  • nuclear capability — If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons.
  • obedience training — the training of an animal, especially a dog, to obey certain commands.
  • object-orientation — object-oriented
  • octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
  • on the back burner — low priority
  • one's heart bleeds — used to express sympathetic grief, but often used ironically
  • optical brightener — an additive that dyes and brightens fabric or paper
  • oriental alabaster — alabaster (def 2).
  • pattern bargaining — a collective bargaining technique in which contract terms in one settlement are used as models to be imposed on other negotiating parties within an industry.
  • payment by results — a system of wage payment whereby all or part of the wage varies systematically according to the level of work performance of an employee
  • pileolated warbler — either of two western subspecies of Wilson's warbler.
  • plumber's merchant — a shop or business that sells things needed for the job of installing and repairing pipes, fixtures, etc, for water, drainage, and gas
  • point-bearing pile — a pile depending on the soil or rock beneath its foot for support.
  • portable equipment — Portable equipment is electrical equipment that can easily be moved from one place to another while in operation or while connected to the supply.
  • precipitable water — the total water vapor contained in a unit vertical column of the atmosphere.
  • prepositional verb — a combination of verb and preposition, often with idiomatic meaning, differing from other phrasal verbs in that an object must always follow the preposition, as take after in The children take after their mother.
  • probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
  • protease inhibitor — a drug that inhibits the action of protease, especially any of a class of antiviral drugs that prevent the cleavage and replication of HIV proteins.
  • provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
  • public corporation — a corporation, owned and operated by a government, established for the administration of certain public programs.
  • pyramus and thisbe — (in Greek legend) two lovers of Babylon: Pyramus, wrongly supposing Thisbe to be dead, killed himself and she, encountering him in his death throes, did the same
  • rabbit's-foot fern — hare's-foot fern.
  • rabbit-foot clover — a plant, Trifolium arvense, having trifoliate leaves with narrow leaflets and fuzzy, cylindrical, grayish-pink flower heads.
  • rabbit-proof fence — a fence through which rabbits are unable to pass
  • radiocarbon dating — the determination of the age of objects of organic origin by measurement of the radioactivity of their carbon content.
  • ragtag and bobtail — the riffraff; rabble: The ragtag and bobtail of every nation poured into the frontier in search of gold.
  • range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
  • relational algebra — (database, theory)   A family of algebra with a well-founded semantics used for modelling the data stored in relational databases, and defining queries on it. The main operations of the relational algebra are the set operations (such as union, intersection, and cartesian product), selection (keeping only some lines of a table) and the projection (keeping only some columns). The relational data model describes how the data is structured.
  • remains to be seen — If you say that it remains to be seen whether something will happen, you mean that nobody knows whether it will happen.
  • reverberation time — the time it takes for a sound made in a room to diminish by 60 decibels.
  • risk based testing — (testing)   Testing based on identification of potential risks (or "candidate risks"), which should be analysed by the project stakeholder or which might appear during the project's development.
  • row address strobe — (storage)   (RAS) An input to a dynamic random-access memory (DRAM) to indicate that the row address lines are valid.
  • saint bernard pass — either of two passes over the Alps: the Great St Bernard Pass 2472 m (8110 ft) high, east of Mont Blanc between Italy and Switzerland, or the Little St Bernard Pass 2157 m (7077 ft) high, south of Mont Blanc between Italy and France
  • saint john's bread — carob (def 2).
  • saturation bombing — intense area bombing intended to destroy everything in the target area.
  • selective abortion — the aborting of particular embryos for medical or social reasons
  • separate but equal — pertaining to a racial policy, formerly practiced in some parts of the United States, by which black people could be segregated if granted equal opportunities and facilities, as for education, transportation, or jobs.
  • september holidays — a period of time in September when people do not have to go to school, college or work
  • september massacre — (in the French Revolution) the massacre of royalists and other inmates of the prisons of Paris, September 2–6, 1792.
  • shorthand notebook — a notebook used by a shorthand writer
  • sindbad the sailor — (in The Arabian Nights' Entertainments), a wealthy citizen of Baghdad who relates the adventures of his seven wonderful voyages.
  • skinny-rib sweater — a tight-fitting ribbed woollen jumper or pullover
  • small pastern bone — the part of the foot of a horse, cow, etc., between the fetlock and the hoof.
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