The SI nano- prefix means x 10-9
nano-
'Nano' is not a noun; 'nano' is not even a word, it is a prefix meaning 'one billionth' or used informally as an extremely small part of a whole. Some words with the prefix nano- are nanosecond, nanotechnology, or nanoscale.
The next metric prefix after nano in descending order is pico.
The metric prefix for billionth is nano- (symbol: n), representing 10^(-9).
nano-
it means 1 billionth of a unit!!
Nano.
Nano- means million.
micro- nano-
The Greek fractional prefix meaning one one-billionth is "nano-" (symbol: n).
The prefix "nano" = 1/1,000,000,000 indicates 10^-9 or a billionth.
The fraction prefix that means one trillionth is nano-.