inclined plane

Hence the latter is not level, but has, in places, steps which have been worn to an inclined plane.

Some clocks are still made with a small ball, or bullet on an inclined plane, which turns every minute.

From the suspension bridge, below the Falls, you have an inclined plane of troubled waters.

Ox mills on an inclined plane, and horse mills by draught, are common through the country.

The body of the person to be reflected is against an inclined plane, which is covered with black cloth.