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Definition of PI
1. Noun. The ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846....
2. Noun. Someone who can be employed as a detective to collect information.
Generic synonyms: Detective
Specialized synonyms: Hotel Detective, House Detective, House Dick, Inquiry Agent, Store Detective
3. Noun. The scientist in charge of an experiment or research project.
4. Noun. The 16th letter of the Greek alphabet.
Generic synonyms: Alphabetic Character, Letter, Letter Of The Alphabet
5. Noun. An antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs.
Generic synonyms: Antiviral, Antiviral Agent, Antiviral Drug
Group relationships: Drug Cocktail, Haart, Highly Active Antiretroviral Therapy
Specialized synonyms: Crixivan, Indinavir, Nelfinavir, Viracept, Norvir, Ritonavir, Invirase, Saquinavir
Definition of PI
1. n. A mass of type confusedly mixed or unsorted.
2. v. t. To put into a mixed and disordered condition, as type; to mix and disarrange the type of; as, to pi a form.
3. n. A Greek letter (Π, π) corresponding to the Roman letter P.
Definition of PI
1. Initialism. partial induction (see AI) ¹
2. Initialism. politically incorrect (See PC) ¹
3. Initialism. (electronics) power integrity ¹
4. Initialism. principal investigator (lead researcher on a grant-funded project) ¹
5. Initialism. private investigator ¹
6. Initialism. personal injury ¹
7. Initialism. Prison Industries (The prison-run work program for inmates) ¹
8. Initialism. (organic compounds) polyimide ¹
9. Initialism. (Philippines colloquial) the Philippines (PI standing for ''Philippine Islands'') ¹
10. Abbreviation. Piauí, a state of Brazil. ¹
11. Noun. The name of the sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek. ¹
12. Noun. (mathematics) An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.1415926535897932384626433832795; usually written ?. ¹
13. Noun. (metal typesetting) Metal type that has been spilled, mixed together, or disordered. Also called pie. ¹
14. Verb. (metal typesetting) To spill or mix printing type. Also, "to pie". ¹
15. Adjective. (typography) Not part of the usual font character set; especially, non-Roman type or symbols as opposed to standard alphanumeric Roman type. ¹
16. Abbreviation. (typography) pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch) ¹
17. Abbreviation. piaster ¹
¹ Source: wiktionary.com
Definition of PI
1. a Greek letter [n -S] / to jumble or disorder [v PIED, PIEING or PIING, PIES]
Medical Definition of PI
1.
1. 16th Letter of the Greek alphabet.
2. (Π). Symbol for osmotic pressure; in mathematics, symbol for the product of a series.
3. (π). Symbol for the ratio of the circumference of a circle to its diameter (approximately 3.14159265).
4. Symbol for inorganic orthophosphate (should not be used when covalently linked to another moiety).
5. The pH value for the isoelectric point of a given substance.
6.
Lexicographical Neighbors of PI
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