Is there a name for $\frac{d\vec{r}}{d\theta}$?

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I know the derivative of angle with respect to time, $\vec{\omega}=\frac{d\theta}{dt}$, is angular velocity.

Is there an analogous name for the derivative of position with respect to angle, $\frac{d\vec{r}}{d\theta}$?

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Comments suggest the answer is 'no'.