Online Google Dictionary

pi 中文解釋 wordnet sense Collocation Usage Collins Definition
Symbol
/pī/,
Font size:

pis, plural;
  1. The numerical value of pi

  2. Osmotic pressure

  3. Mathematical product

Noun
  1. The sixteenth letter of the Greek alphabet (Π, π), transliterated as ‘p.’

  2. The numerical value of the ratio of the circumference of a circle to its diameter (approximately 3.14159)

  3. The sixteenth star in a constellation
    • - Pi Herculis
  4. Relating to or denoting an electron or orbital with one unit of angular momentum about an internuclear axis

  1. the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
  2. private detective: someone who can be employed as a detective to collect information
  3. principal investigator: the scientist in charge of an experiment or research project
  4. the 16th letter of the Greek alphabet
  5. protease inhibitor: an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs
  6. A list of the main characters from the first version of the Massively multiplayer online role-playing game "The World"
  7. π (also known as Pi) is a 1998 black-and-white American psychological thriller directed by Darren Aronofsky, who won the Directing Award at the 1998 Sundance Film Festival, the Independent Spirit Award for Best First Screenplay and the Gotham Open Palm Award. ...
  8. Aerial is the eighth studio album by the British singer Kate Bush. Released on 7 November 2005, it was her first album since 1993. The album peaked at No.3 in the UK and has been certified Platinum by the BPI and sold over 1,100,000 copies after just 5 months of being released.
  9. π is the soundtrack from the film of the same name. It launched the film scoring career of Clint Mansell.
  10. In mathematics, the prime-counting function is the function counting the number of prime numbers less than or equal to some real number x. It is denoted by (this does not refer to the number π).
  11. (PIs) The Pacific Islanders rugby union team (usually known as just Pacific Islanders) is an international rugby union team, started in 2004, that represents Fiji, Samoa and Tonga. ...
  12. partial induction (see AI); power integrity; principal investigator (lead researcher on a grant-funded project); private investigator; personal injury; Prison Industries (The prison-run work program for inmates); polyimide; the Philippines (PI standing for Philippine Islands); Piauí, a state ...
  13. (PIS) Perfect Information Syndrome. When someone appears to know something that isn't public knowledge, or appears certain of something they shouldn't be.
  14. (PIS) Qpirya juice, syrup. Npeich ;pichen juicy.
  15. (PIs) Aaron Bauer & Kenneth R. Koedinger
  16. (Pis) Walling material of clay mixed with straw. Also called cob.
  17. Used to indicate what is included in a monthly payment on real property. If the payment includes only principal and interest, property taxes and hazard insurance would make the total payment higher.
  18. Abbreviation for "personal injury." Used in the phrases "PI practice" and "PI seminar," which focus on patients with occupational or auto injuries.
  19. Principal and interest due on a mortgage.
  20. Pi is a mathematical constant equal to approximately 3.1415926535897932.
  21. Parris Island (MCRD PI)
  22. Performance Indicators
  23. Another magical mathematical number, 3.14159....... It is an irrational number, so unlike rationals, the decimals run on forever, never forming a repeating pattern. Entire books have been devoted to Pi, which has roots far deeper than its relationship with circles.
  24. PI (Provider Independent) address space is directly assigned to networks from RIRs.
  25. Symbol P, denotes a constant value of 3.141592…. Used in the calculation of radius, circumference and other calculations relating to circles and spheres.