nano-

a combining form with the meaning “very small, minute,” used in the formation of compound words (nanoplankton); in the names of units of measure it has the specific sense “one billionth” (10-9): nanomole; nanosecond.
Also nanno-; especially before a vowel, nan-.

Origin of nano-

combining form representing Greek nânos, nánnos dwarf

Words nearby nano-

nanny state, nanny tax, nannyberry, nannygai, nano, nano-, nanobe, nanobot, nanocephaly, nanocormia, nanodot

British Dictionary definitions for nano-

nano-

combining form

denoting 10 –9 nanosecond Symbol: n
indicating extreme smallness nanoplankton

Word Origin for nano-

from Latin nānus dwarf, from Greek nanos

Medical definitions for nano-

nano-

pref.

Extremely small:nanoid.
One-billionth (10-9):nanometer.

Scientific definitions for nano-

nano-

A prefix that means:
Very small or at a microscopic level, as in nanotube. In this sense, this prefix is sometimes spelled nanno-, as in nannoplankton.
One billionth, as in nanosecond, one billionth of a second.