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Definition of per - 13 dictionary results

per

[pur; unstressed per]
–preposition
1. for each; for every: Membership costs ten dollars per year. This cloth is two dollars per yard.
2. by means of; by; through: I am sending the recipe per messenger.
3. according to; in accordance with: I delivered the box per your instructions.
–adverb
4. Informal. each; for each one: The charge for window-washing was five dollars per.

Origin:
1580–90; < L: through, by, for, for each. See for


Per for a or an or for each occurs chiefly in technical or statistical contexts: miles per gallon; work-hours per week; feet per second; gallons of beer per person per year. It is also common in sports commentary: He averaged 16 points per quarter. Per is sometimes criticized in business writing in the sense “according to” and is rare in literary writing.

per-

1. a prefix meaning “through,” “thoroughly,” “utterly,” “very”: pervert; pervade; perfect.
2. Chemistry. a prefix used in the names of inorganic acids and their salts that possess the maximum amount of the element specified in the base word: percarbonic (H2C2O5), permanganic (HMnO4), persulfuric (H2S2O8), acids; potassium permanganate (KMnO4); potassium persulfate (K2S2O8).

Origin:
< L, comb. form of per per, and used as an intensive

Per.

per.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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per   (pûr)   
prep.  
  1. To, for, or by each; for every: Gasoline once cost 40 cents per gallon.

  2. According to; by: Changes were made to the manuscript per the author's instructions.

  3. By means of; through.

adv.   Informal
  1. For each one; apiece: sold the cookies for one dollar per.

  2. Per hour: was driving at 60 miles per.


[Latin; see per1 in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

per  (prep.)
1588 (earlier in various L. and Fr. phrases), from L. per "through, during, by means of, on account of, as in," from PIE base *per- "through, across, beyond" (cf. Skt. pari "around, about, through," O.Pers. pariy, Gk. peri "around, about, beyond," O.C.S. pre-, Rus. pere- "through," Lith. per "through," O.Ir. air- Goth. fair-, Ger. ver- O.E. fer-, intensive prefixes).
Online Etymology Dictionary, © 2001 Douglas Harper
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Financial Dictionary

PER

See Post Execution Reporting System.

Wall Street Words: An A to Z Guide to Investment Terms by David L. Scott.
Copyright © 2003. Published by Houghton Mifflin.
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Legal Dictionary

Main Entry: per
Pronunciation: 'p&r
Function: preposition
: as stated by —used to indicate the author of an opinion with which the majority of judges concur
Merriam-Webster's Dictionary of Law, © 1996 Merriam-Webster, Inc.
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Medical Dictionary

Main Entry: per
Pronunciation: 'p&r
Function: preposition
: by the means or agency of : by way of : through per the bloodstream to the stomach —Sydney (Australia) Bull.> per rectum> —see PER OS

Main Entry: per
Function: abbreviation
1 period; periodic
2 person
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

per- pref.

  1. Thoroughly; completely; intensely: perfuse.

  2. Containing an element in its highest oxidation state: perchloric acid.

  3. Containing a large or the largest possible proportion of an element: peroxide.

  4. Containing the peroxy group: peracid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Computing Dictionary

PER
1. Packed Encoding Rules.
2. partial equivalence relation.
(1998-05-27)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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Abbreviations & Acronyms
PER
Perseus (constellation)
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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