plural of Wartenberg wheel

(medicine) An instrument for neurological use, having a wheel with evenly spaced radiating sharp pins that is rolled across the skin to test the patient's sensation.

plural of pounce wheel

(theater) A rotating perforated disc that gives a flickery effect to light coming from behind it.

plural of flicker wheel

(rail transport) A flat spot on a railway wheel caused when a wheel, or both wheels on the same axle, in a moving train stop rotating.

plural of wheel flat

A cylinder with a set of teeth of incremental lengths which, when coupled to a counting wheel, can be used in the calculating engine of a class of mechanical calculators.

plural of Leibniz wheel

plural of thunder-wheel