|≈||approximately equal to|
|digits||indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)|
Barge is the unit of measure of weight.
picogram or picogramme is equal to 10-12 gram (unit of mass), comes from a combination of the metric prefix pico (n) with the gram (g). Plural name is picograms.