Dictionary.com
definitions

angular velocity

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

Origin of angular velocity

First recorded in 1810–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for angular velocity

angular velocity

noun
  1. 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 bodySymbol: ω
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
angular velocity in Science

angular velocity

  1. 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 Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.