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21-letter words containing u, n, o, t, c, h

  • nothing in particular — not anything specific
  • one-way hash function — (algorithm)   (Or "message digest function") A one-way function which takes a variable-length message and produces a fixed-length hash. Given the hash it is computationally infeasible to find a message with that hash; in fact one can't determine any usable information about a message with that hash, not even a single bit. For some one-way hash functions it's also computationally impossible to determine two messages which produce the same hash. A one-way hash function can be private or public, just like an encryption function. MD5, SHA and Snefru are examples of public one-way hash functions. A public one-way hash function can be used to speed up a public-key digital signature system. Rather than sign a long message, which can take a long time, compute the one-way hash of the message, and sign the hash.
  • pathfinder prospectus — a prospectus regarding the flotation of a new company that contains only sufficient details to test the market reaction
  • photoelectric current — photocurrent.
  • pincushion distortion — a distortion produced by a lens in which the magnification increases toward the edge of the field.
  • potassium thiocyanate — a colorless, crystalline, hygroscopic, water-soluble solid, KSCN, used chiefly in the manufacture of chemicals, dyes, and drugs.
  • push the panic button — an alarm button for use in an emergency, as to summon help.
  • queer someone's pitch — to upset someone's plans
  • rap over the knuckles — to reprimand
  • rectangular hyperbola — a hyperbola with perpendicular asymptotes
  • return the compliment — repay sb's kindness with a kind act
  • ring down the curtain — to lower the curtain at the end of a theatrical performance
  • roll with the punches — a thrusting blow, especially with the fist.
  • roman catholic church — the Christian church of which the pope, or bishop of Rome, is the supreme head.
  • rutherford scattering — the scattering of an alpha particle through a large angle with respect to the original direction of motion of the particle, caused by an atom (Rutherford atom) with most of the mass and all of the positive electric charge concentrated at a center or nucleus.
  • s-k reduction machine — An abstract machine defined by Professor David Turner to evaluate combinator expressions represented as binary graphs. Named after the two basic combinators, S and K.
  • satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
  • school superintendent — an official whose job is to oversee school administration within a district
  • she stoops to conquer — a comedy (1773) by Oliver Goldsmith.
  • short circuit current — A short circuit current is an overcurrent resulting from a short circuit.
  • snr bandwidth product — (communications)   The integral of the SNR over frequency. The SNR bandwidth product is an important limit in the capacity of a communication channel.
  • south pacific current — an ocean current that flows E in the South Pacific Ocean parallel to the Antarctic Circumpolar Current.
  • sunday school teacher — someone who teaches at a Sunday school
  • synchronous converter — a synchronous machine for converting alternating current to direct current, or vice versa, in which the armature winding is connected to collector rings and to a commutator.
  • take the consequences — to accept the results of one's actions
  • tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
  • the (norman) conquest — the conquering of England by the Normans under William the Conqueror in 1066
  • the best of the bunch — If you say someone or something is the best of the bunch or the pick of the bunch, you mean they are the best of a group of people or things.
  • the executive mansion — the White House
  • the scout association — a worldwide movement for boys or (in some countries) girls, founded as the Boy Scouts in England in 1908 by Lord Baden-Powell with the aim of developing character and responsibility
  • the student community — the body of students in further and higher education, considered as a whole
  • therapeutic community — a group-based form of therapy for mental disorders, sometimes residential
  • throw someone a curve — a continuously bending line, without angles.
  • to be hard luck on sb — to be unfortunate or unlucky for someone
  • to change the subject — When someone involved in a conversation changes the subject, they start talking about something else, often because the previous subject was embarrassing.
  • to sink without trace — If you say that someone or something sinks without trace or sinks without a trace, you mean that they stop existing or stop being successful very suddenly and completely.
  • truth or consequences — a game in which each contestant is asked a question and upon failure to answer or give a correct answer receives a penalty imposed by the leader or the group.
  • twelve-tone technique — a modern system of tone relationships in which the 12 tones of an octave are not centered around any one tone, but are unified by a selected order of tones for a given composition.
  • union of south africa — former name for South Africa, Republic of.
  • william the conqueror — ("the Conqueror") 1027–87, duke of Normandy 1035–87; king of England 1066–87 (son of Robert I, duke of Normandy).
  • without qualification — If something is stated or accepted without qualification, it is stated or accepted as it is, without the need for any changes.
  • youth training scheme — (formerly, in Britain) a scheme, run by the Training Agency, to provide vocational training for unemployed 16–17-year-olds
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