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

  • natural childbirth — childbirth involving little or no use of drugs or anesthesia and usually involving a program in which the mother is psychologically and physically prepared for the birth process.
  • nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
  • nobiliary particle — a preposition forming part of a title of nobility or surname, as French de or German von.
  • noninterchangeable — That cannot be interchanged with another.
  • nuclear capability — If a country has nuclear capability, it is able to produce nuclear power and usually nuclear weapons.
  • octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
  • optical brightener — an additive that dyes and brightens fabric or paper
  • oriental alabaster — alabaster (def 2).
  • pileolated warbler — either of two western subspecies of Wilson's warbler.
  • 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).
  • 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.
  • rabbit-foot clover — a plant, Trifolium arvense, having trifoliate leaves with narrow leaflets and fuzzy, cylindrical, grayish-pink flower heads.
  • 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.
  • 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
  • sindbad the sailor — (in The Arabian Nights' Entertainments), a wealthy citizen of Baghdad who relates the adventures of his seven wonderful voyages.
  • solomon rabinowitz — Solomon, Aleichem, Sholom.
  • stationary bicycle — an exercise bike
  • 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.
  • supraorbital ridge — browridge.
  • tectorial membrane — membrane in the inner ear that covers the organ of Corti
  • the bird has flown — the person in question has fled or escaped
  • the general public — the people in a society; people in general
  • the-master-builder — a play (1892) by Ibsen.
  • timber rattlesnake — a rattlesnake, Crotalus horridus horridus, of the eastern U.S., usually having the body marked with dark crossbands.
  • travelling library — a mobile library in which a vehicle such as a van delivers books to be borrowed
  • treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into
  • trobriand islander — a native or inhabitant of the Trobriand Islands of Papua New Guinea
  • turbine ventilator — a ventilator, usually mounted on the roof of a building, deck of a ship, etc., having at its head a globular, vaned rotor that is rotated by the wind, conveying air through a duct to and from a chamber below.
  • universalizability — the thesis that any moral judgment must be equally applicable to every relevantly identical situation
  • vitelline membrane — the membrane surrounding the egg yolk.
  • voluntary abortion — abortion (def 1).
  • voluntary-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
  • women's liberation — a movement to combat sexual discrimination and to gain full legal, economic, vocational, educational, and social rights and opportunities for women, equal to those of men.
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