Pico

1. Prefix used with the metric system that stands for .000000000001. A pico is 10 to the -12th power, or one trillionth.
2. Short for PIne COmposer, PICO is a Unix / Linux variant file editor.
   
   Additional information about the PICO editor can be found on our Unix Pico command page.

Also see: Editor, Measurement