pole piece (polpes)

A ma of iron forming the end of an electromagnet, by means of which the lines of magnetic force are concen trated and directed. In dynamos the pole-pieces are shaped so as to inclose the surface in which the armature revolves. 4592 If it had been any other beast which knocked me down but that poley heifer, I should have been hurt. H. Kingsley , Geoffry Hamlyn, xxix. ( Davies .) poleynt, n. See poulaine . polhode (pol'hod), n. [Irreg. formed (by Poinsot, in 1852) πόλος , axis, pole, + ὁδός , way, path.] A non-plane curve, the locus of the point of contact with an ellipsoid of a plane tangent at once to that surface and to a concentric sphere. - A ociate of the polhode, the locus of the point of contact of a plane with an ellipsoid rolling upon it and having a fixed center; herpolhode.