- a unit of length equal to one thousandth of a meter and equivalent to 0.03937 inch. Abbreviation: mm
Also especially British, mil·li·me·tre.
Origin of millimeter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for millimetric
The arms are then extended along the cross rod which is marked with a millimetric scale.
The curves are measured by means of the millimetric tape; the diameters by means of the calipers.
Word Origin and History for millimetric
Online Etymology Dictionary, © 2010 Douglas Harper
- A unit of length equal to one thousandth (10-3) of a meter (0.0394 inch).
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A unit of length in the metric system equal to 0.001 meter. See Table at measurement.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.