| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| per– |
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| PREFIX: | 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!” | | ETYMOLOGY: | Latin, from per, through. See per1 in Appendix I.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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