Word Study
nano-
CIDE DICTIONARY
nano-, pref.
- A prefix meaning
one-billionth ; as, a nanogram is one-thousandth of a microgram. [PJC] - Very small; submicroscopic; -- used to designate sizes smaller than those that would be referred to as
micro- ; as, nanoscale manipulations. [PJC]
OXFORD DICTIONARY
nano-, comb. form denoting a factor of 10(-9) (nanosecond).
Etymology
L f. Gk nanos dwarf
For further exploring for "nano-" in Webster Dictionary Online
