(embryology) The hemisphere of the blastula which eventually gives rise to the three germ layers and is composed of small cells that are in a state of rapid division.

(embryology) The hemisphere of the blastula opposite to the animal pole comprising large yolk cells dividing at a slower rate that eventually differentiate into the extraembryonic membranes.

(obsolete) The pole star.

A pole, often iron-pointed, used for pushing boats along in shallow water.

A magnetic pole in an electric motor or solenoid with a shading coil that encircles a portion of the pole face. The shading coil creates an out-of-phase current that allows a single phase alternating current electric motor to start or minimizes chatter in an alternating current solenoid or relay.

plural of pole face

The terminating surface of a magnetic pole of a magnet or electromagnet.

(mathematics) The vertices in a Voronoi diagram that are farthest from the point defining a cell. In particular, a positive pole is farthest from the defining point, and the negative pole is farthest from the defining point on the other side of the cell from the positive pole, where "other side" refers to vertices for which the angle formed by a vector from the defining point to the vertex with the vector from the defining point to the positive pole is greater than π/2.

A pole that runs horizontally between two supports or is supported by a central support. / One of two poles that cross over one another.

A type of antenna that utilises cross-polarisation; an antenna in which the sending and receiving waves are orthogonal to one another.