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n. Abbr. mGal or mgal
A unit of acceleration equal to one thousandth (10-3) of a gal.
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) a thousandth of a gal
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈmɪl ɪˌgæl)

a unit of acceleration equal to 1/1000 of a gal; 1/1000 of a centimeter per second per second.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
The gravity anomaly measures at least 3 milliGal amplitude, over approximately 3 square kilometres, with the anomaly centre coincident with a local circular magnetic anomaly, within a broad zone of elevated gold geochemistry.
The gravity has the physical dimension of acceleration and is often expressed in a CGS unit milligal (1 mGa1= [10.sup.-5] m [s.sup.-2]).