What do a.m. and p.m. stand for?


[nan-uh-mee-ter, ney-nuh-] /ˈnæn əˌmi tər, ˈneɪ nə-/
one billionth of a meter.
Abbreviation: nm.
Compare millimicron.
Origin of nanometer
1960-65; nano- + meter1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for nanometer
  • Scientists are forming solutions that come in form of proteins, robots, and materials at the nanometer scale.
  • The laser shots created nanometer-sized particles in the air.
  • The polymer's two-nanometer-long bristles attract water molecules, which create a barrier against pore-clogging oils and proteins.
  • Then they use a transmission-electron microscope to blast a hole as small as one nanometer in diameter in the stack.
  • We study the structure of liquids at the nanometer scale in thin films and droplets.
  • So nanometer particles can be diffused throughout the body, carried along with body fluids across cell walls.
British Dictionary definitions for nanometer


one thousand-millionth of a metre nm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for nanometer

also nanometre, 1963, from nano- + meter (n.2).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
nanometer in Medicine

nanometer nan·o·me·ter (nān'ə-mē'tər)
Abbr. nm
One billionth (10-9) of a meter.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
nanometer in Science
One billionth (10-9) of a meter.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for nanometer

Few English speakers likely know this word

Word Value for nanometer

Scrabble Words With Friends

Nearby words for nanometer