p

P, p

[pee]
noun, plural P's or Ps, p's or ps.
1.
the sixteenth letter of the English alphabet, a consonant.
2.
any spoken sound represented by the letter P or p, as in pet, supper, top, etc.
3.
something having the shape of a P .
4.
a written or printed representation of the letter P or p.
5.
a device, as a printer's type, for reproducing the letter P or p.
Dictionary.com Unabridged

P

1.
Education. (as a rating of student performance) passing.
2.
Chess. pawn.
3.
Electronics. plate.
4.
5.
Grammar, predicate.

P

Symbol.
1.
the 16th in order or in a series, or, when I is omitted, the 15th.
2.
(sometimes lowercase) the medieval Roman numeral for 400. Compare Roman numerals.
3.
Genetics. parental.
4.
Chemistry, phosphorus.
5.
Physics.
a.
power.
b.
pressure.
c.
proton.
e.
poise 2 .
6.
Biochemistry, proline.

p

1
Music. softly.

Origin:
< Italian piano

p

2
penny; pence.

P-

Military. (in designations of fighter aircraft) pursuit: P-38.

p-

Chemistry, para-1 ( def 2 ).

P.

1

Origin:
< Latin Pater

p.

1

Origin:
< Latin pater

p.

2
Music. softly.

Origin:
< Italian piano

p.

3

Origin:
< Latin post

p.

4
1.
2.
4.
5.
Chess. pawn.
6.
penny; pence.
7.
8.
Grammar, person.
10.
11.
12.
13.
Baseball. pitcher.
14.
18.

Heyse

[hahy-zuh]
noun
Paul (Johann von) [poul yoh-hahn fuhn] , 1830–1914, German playwright, novelist, poet, and short-story writer: Nobel Prize 1910.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
p or P (piː)
 
n , pl p's, P's, Ps
1.  the 16th letter and 12th consonant of the modern English alphabet
2.  a speech sound represented by this letter, usually a voiceless bilabial stop, as in pig
3.  mind one's p's and q's to be careful to behave correctly and use polite or suitable language
 
P or P
 
n

p
 
symbol for
1.  (in Britain) penny or pence
2.  music piano: an instruction to play quietly
3.  pico-
4.  physics
 a.  momentum
 b.  proton
 c.  pressure

P
 
symbol for
 
abbreviation for
1.  chem phosphorus
2.  physics
 a.  pressure
 b.  power
 c.  parity
 d.  poise
3.  (on road signs) parking
4.  chess pawn
5.  currency
 a.  (the former) peseta
 b.  peso
 c.  pataca
 d.  pula
6.  Portugal (international car registration)
7.  pharmacy only: used to label medicines that can be obtained without a prescription, but only at a shop at which there is a pharmacist

p.
 
abbreviation for , pp
1.  page
2.  part
3.  participle
4.  past
5.  per
6.  post
7.  pro
 
[(sense 7) Latin: in favour of; for]

p-
 
prefix
short for para-

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

P
a rare letter in the initial position in Gmc., in part because by Grimm's Law PIE p- became Gmc. f-; even with early L. borrowings, -p- takes up only a little over 4 pages in J.R. Clark Hall's "Concise Anglo-Saxon Dictionary," compared to 31 pages for B and more than 36 for F. But it now is the third
most common initial letter in the Eng. vocabulary, and with C and S, comprises nearly a third of the words in the dictionary, a testimonial to the flood of words that have entered the language since 1066 from L., Gk., and Fr. To mind one's Ps and Qs (1779), possibly is from confusion of these letters among children learning to write. Another theory traces it to old-time tavern-keepers tracking their patrons' bar tabs in pints and quarts. But cf. also to be P and Q (1612), "to be excellent," a slang phrase said to derive from prime quality.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

P
The symbol for the element phosphorus.

p- abbr.
para- (often italic)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
P  
  1. The symbol for parity.

  2. The symbol for phosphorus.

  3. The symbol for power.

  4. The symbol for pressure.


phosphorus   (fŏs'fər-əs)  Pronunciation Key 
Symbol P
A highly reactive, poisonous nonmetallic element occurring naturally in phosphates, especially in the mineral apatite. It exists in white (or sometimes yellow), red, and black forms, and is an essential component of protoplasm. Phosphorus is used to make matches, fireworks, and fertilizers and to protect metal surfaces from corrosion. Atomic number 15; atomic weight 30.9738; melting point (white) 44.1°C; boiling point 280°C; specific gravity (white) 1.82; valence 3, 5. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Abbreviations & Acronyms
p
  1. momentum

  2. piano (musical direction)

  3. proton

  4. punctuation

P
  1. pale

  2. parental generation

  3. parity

  4. parking available

  5. pass

  6. pawn

  7. petite

  8. phosphorus

  9. poor

  10. Portugal (international vehicle ID)

  11. pressure

  12. professional (as in personal ads)

  13. punter

p.
  1. page

  2. part

  3. participle

  4. past

  5. penny

  6. peseta

  7. peso

  8. pint

  9. pipe

  10. pole

  11. population

  12. principal

  13. purl

P.
Peter
p-
para-
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
American Heritage
Idioms & Phrases

p

see mind one's p's and q's.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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