Pepper stand at Central Market in Houston, Texas, with Scoville scale. Unlike methods based on high-performance liquid chromatography, the Scoville scale is a subjective measurement dependent on the capsaicin sensitivity of testers and so is not a precise or accurate method to measure capsaicinoid concentration.
By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. Unlike some responses on this forum, PI does not equal 22/7 there is a slight difference.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: pi (noun). the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846... private detective, PI, private eye, private investigator, operative, shamus, sherlock (noun).