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

  • 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.
  • public examination — an examination, such as a GCSE exam, that is set by a central examining board
  • publicity campaign — an effort to convey information to the public
  • punishment beating — a form of corporal punishment carried out by a paramilitary organization on a member of another sectarian organization, usually in Northern Ireland
  • 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.
  • safety-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
  • 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.
  • scottish blackface — a common breed of hardy mountain sheep having horns and a black face, kept chiefly on the mainland of Scotland
  • selective abortion — the aborting of particular embryos for medical or social reasons
  • september holidays — a period of time in September when people do not have to go to school, college or work
  • significant symbol — a verbal or nonverbal gesture, as a word or smile, that has acquired a conventionalized meaning.
  • 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
  • sodium bicarbonate — a white, crystalline, water-soluble solid, in powder or granules, NaHCO 3 , usually prepared by the reaction of soda ash with carbon dioxide or obtained from the intermediate product of the Solvay process by purification: used chiefly in the manufacture of sodium salts, baking powder, and beverages, as a laboratory reagent, as a fire extinguisher, and in medicine as an antacid.
  • sodium tetraborate — borax1 .
  • solomon rabinowitz — Solomon, Aleichem, Sholom.
  • spin stabilization — a technique by which a bullet, rocket, etc, is made to spin around its longitudinal axis to assist it in maintaining a steady flight path
  • stationary bicycle — an exercise bike
  • statistical tables — tables showing the values of the cumulative distribution functions, probability functions, or probability density functions of certain common distributions for different values of their parameters, and used esp to determine whether or not a particular statistical result exceeds the required significance level
  • sub-classification — to arrange in subclasses.
  • subatomic particle — physics:
  • subordinate clause — a clause that modifies the principal clause or some part of it or that serves a noun function in the principal clause, as when she arrived in the sentence I was there when she arrived or that she has arrived in the sentence I doubt that she has arrived.
  • subsistence farmer — a farmer who consumes most of the produce he grows, leaving little or nothing to be marketed
  • substitute teacher — educator: replaces sb temporarily
  • supraorbital ridge — browridge.
  • take a bite out of — If something takes a bite out of a sum of money, part of the money is spent or taken away in order to pay for it.
  • take a shine to sb — If you say that someone has taken a shine to another person, you mean that he or she liked them very much at their first meeting.
  • talk between ships — TBS (def 1).
  • tectorial membrane — membrane in the inner ear that covers the organ of Corti
  • television cabinet — a cabinet on which a television set is placed or in which it is encased
  • the baptist church — any of various Protestant churches that believe in the baptism of believers
  • the beautiful game — football
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