| 1. | the 16th letter of the Greek alphabet (II, π). |
| 2. | the consonant sound represented by this letter. |
| 3. | Mathematics.
|

| 1. | Law. personal injury. |
| 2. | principal investigator. |
| 3. | private investigator. |
| 1. | Philippine Islands. |
| 2. | Also, p.i. private investigator. |
pi 1 (pī) n.
[Late Greek pī, from Greek pei, of Phoenician origin; see p in Semitic roots.] |
| PI abbr. private investigator |
| private investigator n. Abbr. PI A person privately hired to do investigative or detective work. Also called private detective, private eye. |
The irrational number obtained by dividing the length of the diameter of a circle into its circumference. Pi is approximately 3.1416. The sign for pi is π.
pi (pī)
n. pl. pis
Symbol π The 16th letter of the Greek alphabet.
pI (pē'ī')
n.
The pH value for the isoelectric point of a given substance in solution.
PI
An interface between Prolog application programs and the X Window System that aims to be independent from the Prolog engine, provided that it has a Quintus foreign function interface (e.g. SICStus and YAP). It is mostly written in Prolog and is divided in two libraries: Edipo - the lower level interface to the Xlib functions; and Ytoolkit - the higher level user interface toolkit.
(ftp://ftp.ncc.up.pt/pub/prolog/ytoolkit.tar.Z).
E-mail: Ze' Paulo Leal
(1993-03-02)
| pi Pali |
| Pi inorganic phosphate |
PI
|