it means 1 billionth of a unit!!
The SI nano- prefix means x 10-9
Nano = Very small.
Yes, that is what its called. With "nano 4" i assume you mean the 4th generation of ipod nano.
Small.
A expression in maths is a collection of terms without an equality sign.
Its maths
"tenth"
division
What symbol
mean no
Related to.
circle