# angular velocity

## angular velocity

noun Physics.
the time rate of change of angular position of a rotating body, usually expressed in radians per second or radians per minute.

Origin:
1810–20

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
 angular velocity —n ω the velocity of a body rotating about a specified axis measured as the rate of change of the angle subtended at that axis by the path of the body

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
 angular velocity   The rate of change of an angle associated with an object with respect to some reference point. For example, the average angular velocity of an object moving around a central reference point once every second is 2π radians per second; the Earth spins around its axis with an angular velocity of 2π radians per day. Also called angular frequency.
The American Heritage® Science Dictionary
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Encyclopedia Britannica
Encyclopedia

angular velocity

time rate at which an object rotates, or revolves, about an axis, or at which the angular displacement between two bodies changes. In the , this displacement is represented by the angle theta between a line on one body and a line on the other

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The mistake is that the astronomers by autistic mathematics have mixed up
orbital speed and angular velocity.
The angular velocity of stars is remarkably constant across the galactic radius.
Their angular velocity remains independent of gravitational attraction even
though gravity maintains them in orbital motion.
Convention puts the angular velocity vector along the axis of rotation.
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