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18-letter words containing u, n, c, f

  • formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
  • fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
  • fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
  • frequency function — probability density function (def 2).
  • frequency response — the effectiveness with which a circuit, device, or system processes and transmits signals fed into it, as a function of the signal frequency.
  • frequency spectrum — The frequency spectrum of an electrical signal is the distribution of the amplitudes and phases of each frequency component against frequency.
  • fu manchu mustache — a mustache whose ends droop to the chin.
  • fuel-saving device — a device that increases the fuel efficiency of a vehicle, so that it uses less fuel for a further distance
  • fuming nitric acid — a colorless, yellowish, or brownish fuming corrosive liquid, usually prepared from nitric acid by the addition of excess nitrogen dioxide: used in organic synthesis for nitration, and as an oxidizer in liquid propellants for rockets.
  • functional disease — a disease in which there is an abnormal change in the function of an organ, but no structural alteration in the tissues involved (opposed to organic disease).
  • functional program — (language)   A program employing the functional programming approach or written in a functional language.
  • functional testing — (testing)   (Or "black-box testing", "closed-box testing") The application of test data derived from functional requirements without regard to how the system is implemented.
  • funeral procession — ceremonial cortège at a burial
  • furnishing fabrics — fabrics used to make and cover furniture
  • grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
  • grandfather clause — U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
  • granulated surface — a roughened surface
  • gulf of california — an arm of the Pacific Ocean, between Sonora and Lower California
  • gulf saint vincent — a shallow inlet of SE South Australia, to the east of the Yorke Peninsula: salt industry
  • heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
  • helmholtz function — the thermodynamic function of a system that is equal to its internal energy minus the product of its absolute temperature and entropy: A decrease in the function is equal to the maximum amount of work available during a reversible isothermal process.
  • honeysuckle family — the plant family Caprifoliaceae, typified by shrubs and woody vines having opposite leaves, clusters of usually flaring, narrow, tubular flowers, and various types of fruit, and including the elder, honeysuckle, snowberry, twinflower, and viburnum.
  • hydrofluorocarbons — Plural form of hydrofluorocarbon.
  • immunodeficiencies — Plural form of immunodeficiency.
  • immunofluorescence — any of various techniques for detecting an antigen or antibody in a sample by coupling its specifically interactive antibody or antigen to a fluorescent compound, mixing with the sample, and observing the reaction under an ultraviolet-light microscope.
  • infectious disease — illness spread by person to person
  • influence peddling — the use of power or influence on someone else's behalf in return for money or favours
  • isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
  • lean manufacturing — efficiency in the production of goods
  • manufactured goods — products made by machine
  • manufacturing base — the manufacturing industries of an area or a country considered as a unit and a constituent part of the economy
  • medium of exchange — anything generally accepted as representing a standard of value and exchangeable for goods or services.
  • much of a muchness — very similar
  • multifunctionality — The condition of being multifunctional.
  • 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.
  • no-fault insurance — Also called no-fault insurance. a form of automobile insurance designed to enable the policyholder in case of an accident to collect a certain basic compensation promptly for economic loss from his or her own insurance company without determination of liability.
  • nursery facilities — places where young children are looked after
  • oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
  • out of circulation — If someone is out of circulation, they do not appear in public or at social gatherings for a period of time. You can also say that someone is out of circulation when they are in prison.
  • perceptual defence — the process by which it is thought that certain stimuli are either not perceived or are distorted due to their offensive, unpleasant, or threatening nature
  • percussion flaking — a method of forming a flint tool by striking flakes from a stone core with another stone or a piece of bone or wood.
  • perfect continuous — perfect progressive.
  • piecewise function — a function whose definition changes depending on the value of the independent variable
  • purchasing officer — the member of staff in an organization who is responsible for buying goods or products
  • put a bold face on — to seem bold or confident about
  • quantum efficiency — the number of electrons released by a photocell per photon of incident radiation of a given energy
  • recruiting officer — a person whose job is to recruit staff, esp on behalf of the military
  • recursive function — a function defined in terms of the repeated application of a number of simpler functions to their own values, by specifying a base clause and a recursion formula
  • reference counting — (programming)   A garbage collection technique where each memory cell contains a count of the number of other cells which point to it. If this count reaches zero the cell is freed and its pointers to other cells are followed to decrement their counts, and so on recursively. This technique cannot cope with circular data structures. Cells in such structures refer (indirectly) to themselves and so will never have a zero reference count. This means they would never be reclaimed, even when there are no references from outside the structure.
  • relative frequency — the ratio of the number of times an event occurs to the number of occasions on which it might occur in the same period.
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