Nano may refer to any of the following uses within that genre: Science and engineering Nano-, the SI prefix meaning 10-9 Nanometre, one billionth of a metre Nanosecond, one billionth of a second Nanotechnology, extremely small technology at the nanometre scale Nanoengineering, system of engineering on the nano (very small) scale Nanotube, a nanometre-scale tube-like structure Nanoprobe, real devices for seeing very small objects or fictional device used by the Borg (Star Trek) Nanobe, tiny… (More on Nano)