- a unit of mass or weight equal to one thousandth of a gram, and equivalent to 0.0154 grain. Abbreviation: mg
Also especially British, mil·li·gramme.
Origin of milligram
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for milligram
Blaine groaned as his friend called for the equivalent of a milligram of radium.The Copper-Clad World
The masses commonly used are the milligram, gram and kilogram.Physics
Willis Eugene Tower
Sulphate of eserine is employed like eserine, internally under the form of granules containing up to one milligram.
Four milligrams of aconitine in the organs he studied, and they say one milligram is enough to kill.The Trial of Callista Blake
One milligram of californium-252 will spontaneously produce over 10⁹ neutrons per second.The Atomic Fingerprint
- one thousandth of a gramSymbol: mg
C19: from French
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
Word Origin and History for milligram
Online Etymology Dictionary, © 2010 Douglas Harper
- A metric unit of mass equal to one thousandth (10-3) of a gram.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A unit of mass or weight in the metric system equal to 0.001 gram. See Table at measurement.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.