Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.


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


(ˈmɪl əˌreɪ di ən)

1/1000 of a radian.
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.milliradian - a unit of angular distance equal to one thousandth of a radianmilliradian - a unit of angular distance equal to one thousandth of a radian
angular unit - a unit of measurement for angles
microradian - a unit of angular distance equal to one thousandth of a milliradian
radian, rad - the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The normal measurement noise vector for the radar sensor is a zero mean Gaussian sequence with standard deviation of 20 m for range and 10 milliradian (mrad) for azimuth angle.
Mil stands for Milliradian, which is a unit of angular measurement.
Additional milliradian dots allow the Impact Reticle to be used with mil-based reticles as well.
A milliradian equals approximately 31/2 MOA, or minutes of angle.
The popular mil-dot reticle requires you to know the size of the target so you can use the scope's milliradian dots to formulate a range table and then the distance to target.
This is not a technical term for a magnetic compass, for north-seeking modules rely on electronics to provide a north indication accurate to within one milliradian, far better than could be accomplished by the most refined magnetic compass that could always be deflected by nearby metal objects such as vehicles.
The antenna operates over a three percent band-width in X-band, exhibits very low sidelobes in all modes, supports a high power radar transmitter and possesses fractional milliradian boresight and beam pointing accuracies.
Although the mil dot was fashioned by the Marine Corps for long-range sniping, "mil" does not mean military; it's an abbreviation for milliradian, a measure of arc.