Difference between rotational and angular velocity

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Angular velocity is defined as the rate of change of angle with respect to time, measured in radians per second, while rotational velocity can refer to the number of revolutions per unit time, expressed in revolutions per second. The discussion highlights that if angular velocity is represented as w radians per second, rotational velocity could be calculated as w/(2π) revolutions per second. Alternatively, rotational velocity might also refer to the linear velocity of a point on the circumference of a circle, calculated as (w/π) r, where r is the radius. The distinction between these terms is important for understanding motion in circular paths. Clarifying these definitions aids in grasping concepts related to rotational dynamics.
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Can anyone tell me the difference between "rotational velocity" and "angular velocity"?

I got that angular velocity is the dimension of angle/time, but rotational velocity is the dimension of rotations/time.

Will appreciate it if you can also provide me with some references defining the difference.

Thank you in advance for your help.
 
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Quite frankly, I don't recall seeing "rotational velocity".

I could see it as having either of two meanings:
number of revolutions per unit time- if angular velocity is w radians per second, then (since there are 2pi radians in a circle) the "rotational velocity" would be w/(2pi) revolutions per second.

The other possibility is the linear velocity of a point on the circumference of the circle. Since an angle theta in a circle of radius r subtends an arc of length (theta/pi) r, the "rotational velocity" would be (w/pi) r.
 

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