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PI

Definition:

1. [noun] the ratio of the circumference to the diameter of a circle
   Synonyms: 3.14159265358979323846...
   
   
2. [noun] someone who can be employed as a detective to collect information
   Synonyms: private detective, PI, private eye, private investigator, operative, shamus, sherlock
   
   
3. [noun] the scientist in charge of an experiment or research project
   Synonyms: principal investigator, PI
   
   
4. [noun] the 16th letter of the Greek 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
   Synonyms: protease inhibitor, PI
   
   

Synonyms:

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Related Words:

• hotel detective, house detective, house dick
• inquiry agent
• store detective
• indinavir, Crixivan
• nelfinavir, Viracept
• ritonavir, Norvir
• saquinavir, Invirase

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