Advertisement - Continue reading below

Definition of "nanometer" []

  • One billionth (10-9) of a meter. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "nanometer" in a sentence
  • "A nanometer is one-billionth of a meter, and nanotechnology typically deals with particles and structures larger than 1 nanometer, but smaller than 100 nanometers."
  • "A single nanometer is roughly the size of 20 hydrogen atoms strung together."
  • "A nanometer is one billionth of a meter or about 1,000 times smaller than the width of a human hair."