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A unit of mass equal to one thousandth (10-3) of a milligram or one millionth (10-6) of a gram.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Units) one millionth of a gram
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈmaɪ krəˌgræm)

a unit of mass or weight equal to one millionth of a gram. Symbol:μg
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.microgram - one millionth (1/1,000,000) gram
metric weight unit, weight unit - a decimal unit of weight based on the gram
mg, milligram - one thousandth (1/1,000) gram
nanogram, ng - one billionth (1/1,000,000,000) gram
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n microgramo
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.