Definitions for "Picoliter"
0.000000000001 or one trillionth of a liter.
pL. One picoliter is 10-12 liters.
One-trillionth of a liter (10 to the - 12th power).
Miniscule unit of liquid measurement with regard to inkjet inks. These days, some inkjets come with ink droplet volumes as small as 2 picoliters.