(Mech.) A screw cut on a solid whose sides are arcs of the periphery of a wheel into the teeth of which the screw is intended to work. It is named from the person who first used the form.
[さとやま, satoyama](n) (1) undeveloped woodland near populated area; (2) settlement pattern of living in upland valleys and cultivating lower slopes#17667[Add to Longdo]