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Per-

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per-

 
Use Per- in a Sentence
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
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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per-  
pref.  

  1. Thoroughly; completely; intensely: perfervid.

  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.

  5. Slang Very: percool, as in "That shirt is percool, man!"


[Latin, from per, through; 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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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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