A unit of length equal to one thousandth (10-3) of a meter, or 0.0394 inch. See Table at measurement.(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 "millimeter" in a sentence
"The most recent technology that's out there today, which is in several airports throughout the United States in a voluntary basis, uses what we call a millimeter wave system, which actually looks under the clothing of an individual."
"You will obey my orders or — My wrist twitched and the scalpel sped the length of the room and thudded into a distant pillow — a scant millimeter from the shocked face of a crewman."
"Directed by David Jones, the production oozes that solemn archness, often found in historical drama, that stops only a millimeter from the free-fall zone of camp."