18-letter words containing a, e, q, u, o, n
- algebraic equation — an equation in the form of a polynomial having a finite number of terms and equated to zero, as 2 x 3 + 4 x 2 − x + 7 = 0.
- auxiliary equation — characteristic equation (def 1b).
- auxiliary-equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
- back to square one — If you are back to square one, you have to start dealing with something from the beginning again because the way you were dealing with it has failed.
- bernoulli equation — Hydrodynamics. Bernoulli's theorem (def 2).
- bill of quantities — a document drawn up by a quantity surveyor providing details of the prices, dimensions, etc, of the materials required to build a large structure, such as a factory
- boole's inequality — the theorem that the probability of several events occurring is less than or equal to the sum of the probabilities of each event occurring.
- call into question — to raise a question or doubt about
- cash-for-questions — of, involved in, or relating to a scandal in which some MPs were accused of accepting bribes to ask particular questions in Parliament
- causa sine qua non — an indispensable condition; requisite.
- chebyshev equation — Tchebycheff equation.
- combination square — an adjustable device for carpenters, used as a try square, miter square, level, etc.
- consequential loss — A consequential loss is a loss that follows another loss that is caused by a danger that has been insured against.
- eastern algonquian — a subgroup of the Algonquian language family, comprising the languages spoken aboriginally from Nova Scotia to northeastern North Carolina.
- equinoctial circle — celestial equator
- equinoctial spring — either of the two highest spring tides that occur at the equinoxes
- fibonacci sequence — (mathematics) The infinite sequence of numbers beginning 1, 1, 2, 3, 5, 8, 13, ... in which each term is the sum of the two terms preceding it. The ratio of successive Fibonacci terms tends to the golden ratio, namely (1 + sqrt 5)/2.
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- inconsequentiality — of little or no importance; insignificant; trivial.
- inquisitor-general — the head of the Spanish court of Inquisition
- major tranquilizer — antipsychotic (def 2).
- minor tranquilizer — antianxiety drug.
- mozambique channel — a channel in SE Africa, between Mozambique and Madagascar. 950 miles (1530 km) long; 250–550 miles (400–885 km) wide.
- political question — a question regarded by the courts as being a matter to be determined by another department of government rather than of law and therefore one with which they will not deal, as the recognition of a foreign state.
- 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.
- quadratic equation — an equation containing a single variable of degree 2. Its general form is ax 2 + bx + c = 0, where x is the variable and a, b, and c are constants (a ≠ 0).
- quality controller — a person responsible for checking that the goods or services produced by an organization are of an acceptable standard
- quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
- quite the contrary — not at all, the very opposite
- the queen of sheba — a queen of the Sabeans, who visited Solomon (I Kings 10:1–13)
- ultralow frequency — an electromagnetic wave with a frequency between 300 and 3000 hertz. Abbreviation: ULF, ulf.
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