PI

adj

1. Initialism of politically incorrect (see PC).

name

Etymology: From Mandarin 郫 (Pí).

1. A county of Chengdu, Sichuan, China.

   “Pi County has brought democracy into full play. The peasants there are electing production team leaders and other production team cadres by secret ballot.”

   “[...]water carriers, the sedanchair carriers, the pawn brokers, and even the manure collectors in a market town in Pi county, Szechwan in the late Ch'ing period.”

noun

1. Initialism of processing instruction.
2. Initialism of partial induction (see AI).
3. Initialism of personal injury.
4. Initialism of principal investigator (“lead researcher on a grant-funded project”).
5. Initialism of private investigator.
6. Initialism of parallel import.
7. Abbreviation of phosphatidylinositol, a phospholipid component of eukaryotic cell membranes, also abbreviated in PtdIns.
8. Initialism of protease inhibitor.
9. Initialism of polyimide.
10. Initialism of ponderal index.
11. Initialism of penile inversion.
12. Initialism of power integrity.
13. Abbreviation of prohibited immigrant.
14. Initialism of pseudoincest.
15. Initialism of port injection (“fuel injection”).
16. Initialism of paradoxical intention.
17. Initialism of pro forma invoice.
18. Initialism of people's initiative.
19. Initialism of preliminary injunction.

verb

Etymology: Unclear. Possibly from the Greek letter (see Etymology 1) as a common example of non-alphabetic character, possibly from pica (“type size”) (see Etymology 3), possibly from pie referring to its mixed nature or pied (“checkered, multicoloured”).

1. To spill or mix printing type.