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Definition of phi - 5 dictionary results

phi

[fahy]
–noun, plural phis.
1. the 21st letter of the Greek alphabet (Φ,φ).
2. the consonant sound represented by this letter.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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phi   (fī, fē)   
n.  The 21st letter of the Greek alphabet. See Table at alphabet.

[Late Greek phī, from Greek phei.]
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

phi n.

Symbol φ The 21st letter of the Greek alphabet.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Abbreviations & Acronyms
PHI
  1. Philidelphia Eagles

  2. Philidelphia Phillies

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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Encyclopedia

phi

in Burmese folk religion, any of a group of spirits that are the objects of an extensive, probably pre-Buddhist cult; in Thailand a similar spirit is called phi. Most important of the nats are a group collectively called the "thirty-seven," made up of spirits of human beings who have died violent deaths. They are capable of protecting the believer when kept properly propitiated and of causing harm when offended or ignored.

Learn more about phi with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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