With Fusion REST APIs is there a way to 'describe' a child resource without requiring parent Id ?

Of course the approach is https://{{host}}/{{apiEndpoint}}/{{parentResource}}/{{parentId}}/child/{{childResource}}/describe

However, this requires there to be an instance of the parent resource for the parentId. It seems like there should be a way to 'describe' the child object resource without a parent Id.

Is there a URL that works to 'describe' of the child resource without the parentId?