from The American Heritage® Dictionary of the English Language, 5th Edition.

  • abbreviation piano (musical direction)
  • abbreviation proton
  • noun The 16th letter of the modern English alphabet.
  • noun Any of the speech sounds represented by the letter p.
  • noun The 16th in a series.
  • noun Something shaped like the letter P.
  • noun A hypothesized textual source of certain portions of the Pentateuch that have a formulaic style, contain genealogical lists and descriptions of rituals, and use the name "Elohim" to refer to God.

from The Century Dictionary.

  • noun An abbreviation of Pharmacopœia Britannica, British Pharmacopœia.
  • noun An abbreviation of the Latin partes æquales, equal parts.
  • noun An abbreviation of Privy Councilor; of police constable.
  • noun An abbreviation of Pharmacopœia Edinensis, Edinburgh Pharmacopœia; of Protestant Episcopal.
  • noun An abbreviation of Pharmacopœia Dublinensis, Dublin Pharmacopœia.
  • noun An abbreviation: of post-office;
  • noun (nautical) of petty officer.
  • noun An abbreviation: of post meridiem, ‘after noon or midday’ (also P. M., p. m.): frequently used as synonymous with afternoon or evening;
  • noun of postmaster;
  • noun of peculiar meter.
  • noun An abbreviation of participial adjective, employed in this dictionary.
  • The sixteenth letter and twelfth consonant of the English alphabet, having a corresponding position in other alphabets.
  • As a medieval numeral, 400; with a dash over it , 400,000.
  • As a symbol: In chem., the symbol for phosphorus.
  • In mathematics, the Greek capital II denotes a continued product.
  • Thus, , for which Π (1 + m) is also written, denotes the product (1 + m) m (m − 1) … 3.2.1. The small Greek letter π denotes the ratio of the circumference to the diameter, or 3.14159265359 + . This notation was introduced by Euler. The other form of the Greek minuscule, ω%26, denotes in astronomy the longitude of the perihelion.
  • An abbreviation: Of post in P. M., post meridiem, afternoon, and P. S., postscript.
  • [lowercase] Of page (past participle standing for pages).
  • [lowercase] In music, of piano, softly (past participle standing for pianissimo, very softly)
  • [lowercase] In a ship's log-book, of passing showers.
  • [lowercase] In zoology: Of partim. In dental formulas, same as pm. In ichthyology, of pectoral (fin). In echinoderms, of polyplacid.
  • In medicine, of (Optic) papilla; pupil; pugillus, handful.
  • noun An abbreviation of postscript; (theatrical) of prompt-side.
  • An abbreviation of Post Adjutant.
  • noun An abbreviation of the Latin Philosophiæ Baccalaureus, Bachelor of Philosophy;
  • noun of Primitive Baptist.
  • The initial of pressure, used in formulæ for fluid pressure, as of liquids or gases upon an area. In British and American writings it is usually expressed in pounds per square inch or pounds per square foot, the zero of pressures being the vacuum line as given by the barometer, or about 14.7 pounds below the pressure of the atmosphere. In metric units it is usually expressed in kilograms per square centimeter.
  • In mechan., a symbol for power.
  • In psychophysics, the symbol for the Fechnerian time-error.
  • An abbreviation: Of population.
  • Of the Latin pars, apart.
  • [lowercase or cap.] Of participle.
  • [lowercase or cap.] Of past.
  • Of the Latin pater, father.
  • [lowercase or cap.] Of penny.
  • [lowercase or cap.] Of pint.
  • [lowercase or cap.] Of pipe.
  • [lowercase or cap.] Of pole.
  • Of the Latin pondere, by weight.
  • In electro-technics, of power.
  • Of president.
  • Of prince.


Sorry, no etymologies found.


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  • which one of the following will execute faster? int p = 2; p++; OR p = p+1; OR p+ = 1; and y?? is it p++ bcoz it is a single instruction?? ... nd the rest r multiple ...

    DaniWeb IT Discussion Community priyanka.js28 2010

  • Now, assume that a given sentence, s, corresponds to the fact that p; and assume that ˜p™ and ˜q™ are sentences with the same truth-value.

    The Correspondence Theory of Truth David, Marian 2009

  • Where p is a permutation of objects on a domain D, we can define the p-transform function p* as follows: if x is an object in D, p* (x) =

    Logical Constants MacFarlane, John 2009

  • One can believe p and believe ~p without believing

    Self-Deception Deweese-Boyd, Ian 2008

  • Mele (2001), drawing on empirical research regarding lay hypothesis testing, argues that selectivity may be explained in terms of the agent's assessment of the relative costs of erroneously believing p and ~p.

    Self-Deception Deweese-Boyd, Ian 2008

  • On such deflationary views of self-deception, one need only hold a false belief p, possess evidence that ~p, and have some desire or emotion that explains why p is believed and retained.

    Self-Deception Deweese-Boyd, Ian 2008

  • Traditionally, self-deception has been modeled on interpersonal deception, where A intentionally gets B to believe some proposition p, all the while knowing or believing truly ~p.

    Self-Deception Deweese-Boyd, Ian 2008

  • If we say that p is true if and only if it coheres with a specified set of propositions, we may be asked about the truth conditions of ˜p coheres with a specified set.™

    The Coherence Theory of Truth Young, James O. 2008

  • In general, if one possesses evidence that one normally would take to support ~p and yet believes p instead due to some desire, emotion or other motivation one has related to

    Self-Deception Deweese-Boyd, Ian 2008

  • It is the relative subjective costs of falsely believing p and ~p that explains why desire or other motivation biases belief in some circumstances and not others.

    Self-Deception Deweese-Boyd, Ian 2008


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  • P. Chemical element symbol for Phosphorus.

    December 16, 2007

  • In accordance with the privileges granted by Wordie Pro, this letter, in all its forms, is declared to be the property of pterodactyl, who is entitled to compensation for any use thereof. Said compensation may take the form of either silly poetry or cold hard cash.

    See dog's letter. And mind your (pterodactyl's letter)'s and q's!

    December 14, 2008

  • Ooh, look -- it's p!

    I gets to use it for free!!

    December 14, 2008

  • i'll have a p please bob

    December 14, 2008

  • Pepe Pepperpot plucked a plume from a pimple-pocked pterodactyl.

    December 14, 2008

  • p sure this is a shortened form of pretty

    December 30, 2017