from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The 17th letter of the modern English alphabet.
  • n. Any of the speech sounds represented by the letter q.
  • n. The 17th in a series.
  • n. Something shaped like the letter Q.
  • n. A hypothetical lost manuscript, consisting largely of sayings of Jesus, that is believed to have been the source of those passages in Matthew and Luke that bear close similarity to each other but not to parallel passages in Mark.
  • Physics The symbol for charge.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The seventeenth letter of the basic modern Latin alphabet.
  • n. voiceless uvular plosive.
  • n. electrical charge
  • n. heat
  • n. The seventeenth letter of the English alphabet, called cue and written in the Latin script.
  • n. The ordinal number seventeenth, derived from this letter of the English alphabet, called cue and written in the Latin script.
  • abbr. conditional qualification
  • abbr. question

from the GNU version of the Collaborative International Dictionary of English

  • the seventeenth letter of the English alphabet, has but one sound (that of k), and is always followed by u, the two letters together being sounded like kw, except in some words in which the u is silent. See Guide to Pronunciation, § 249. Q is not found in Anglo-Saxon, cw being used instead of qu; as in cwic, quick; cwen, queen. The name (kū) is from the French ku, which is from the Latin name of the same letter; its form is from the Latin, which derived it, through a Greek alphabet, from the Phœnician, the ultimate origin being Egyptian.

from The Century Dictionary and Cyclopedia

  • The seventeenth letter and thirteenth consonant in the English alphabet.
  • As a medieval Roman numeral, 500.
  • An abbreviation: [lowercase] of quadrans (a farthing)
  • [lowercase] of query
  • [lowercase] of question
  • of queen
  • [lowercase] in a ship's logbook, of squalls
  • in Rom. lit. and inscriptions, of Quintus.
  • A half-farthing: same as cue, 2 .
  • An abbreviation in electrotechnics, of quantity;
  • [lowercase] of quasi;
  • [lowercase] of quintal;
  • of the Latin Quirites.
  • Same as cue, 3 : as, to give or take the Q.
  • In psychophysics, the symbol for the Fechnerian space-error.
  • An abbreviation of the Latin quasi dictum, as if said;
  • of the Latin quasi dixisset, as if he had said.
  • An abbreviation in psychophysics, of quotient limen;
  • [lowercase] of the Latin quantum libet, as much as is required.
  • Abbreviations of the Latin quantum placeat, as much as seems good.
  • A contraction of quiet.
  • n. An abbreviation of Queen's Bench.
  • n. An abbreviation: of Queen's Council or Queen's Counsel
  • n. of Queen's College.
  • n. or
  • n. or
  • n. An abbreviation of quartermaster.
  • n. An abbreviation of quarter-sessions.
  • n. or
  • n. of the Latin phrase quantum sufficit.
  • n. An abbreviation of the Latin phrase quantum vis, ‘as much as you will’
  • n. of quod vide, ‘which see.’

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the 17th letter of the Roman alphabet


Sense 5, probably from German Q(uelle), source.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • A better alternative is to take the observed values q, q², q³, ¦ as the actual elements of reality, and view Ψ just as a bookkeeping device, determined by the actual values q, q², q³,

    Relational Quantum Mechanics

  • In the last step they arbitrarily introduce a heat density source, Q, and a heat current density term, q, to represent the flow of thermal energy.

    Rabett Run

  • Also take the quantities q, q², r, r² of the above lemma (11) to be the single expectation values:

    Bell's Theorem

  • Indeed, as far as its later behavior is concerned, the combined system S+O may very well be in a quantum superposition of alternative possible values q, q², q³, ¦.

    Relational Quantum Mechanics

  • This "second observer" situation captures the core conceptual difficulty of the interpretation of quantum mechanics: reconciling the possibility of quantum superposition with the fact that the observed world is characterized by uniquely determined events q, q², q³, ¦.

    Relational Quantum Mechanics

  • But even if we can circumvent the collapse problem, the more serious difficulty of this point of view is that it appears to be impossible to understand how specific observed values q, q², q³, ¦ can emerge from the same

    Relational Quantum Mechanics

  • The problem of the interpretation of quantum mechanics takes then different forms, depending on the relative ontological weight we choose to assign to the wave function Ψ or, respectively, to the sequence of the measurement outcomes q, q², q³, ¦.

    Relational Quantum Mechanics

  • If Row and Column cooperate with probabilities p and q (and defect with probabilities p* = 1-p and q* = 1-q), for example, then the expected value of the payoff to Row is p*qT+pqR+p*q*P+pq*S.

    Prisoner's Dilemma

  • But mostly we are interested in computing (j smaller than p), and q ' title='p(x_j|z_p..q), jq ' class='latex' /.

    More Bender on Hurricane Counts « Climate Audit

  • Resolution is modeled after the chain rule (of which Modus Ponens is a special case) and essentially states that from p ˆ¨ q and ~q ˆ¨ r one can infer p ˆ¨

    Automated Reasoning


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  • The only letter that does not appear in any U.S. state name.

    January 14, 2010