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Meaning & Definition of Pi in English

English

Pi

/paɪ/

noun

1. The ratio of the circumference to the diameter of a circle

  • Approximately equal to 3.14159265358979323846...
    synonym:
  • pi

2. Someone who can be employed as a detective to collect information

    synonym:
  • private detective
  • ,
  • PI
  • ,
  • private eye
  • ,
  • private investigator
  • ,
  • operative
  • ,
  • shamus
  • ,
  • sherlock

3. The scientist in charge of an experiment or research project

    synonym:
  • principal investigator
  • ,
  • PI

4. The 16th letter of the greek alphabet

    synonym:
  • pi

5. An antiviral drug used against hiv

  • Interrupts hiv replication by binding and blocking hiv protease
  • Often used in combination with other drugs
    synonym:
  • protease inhibitor
  • ,
  • PI

Examples of using

The number pi is approximately equal to 3.14 or 22/7. Its symbol is "π".