pole2

noun

• either of the two locations ( North Pole or South Pole) on the surface of the earth (or of a celestial object) that are the northern and southern ends of the axis of rotation. See also celestial pole, magnetic pole.
• Geometry either of the two points at which the axis of a sphere intersects its surface.
• Geometry a fixed point to which other points or lines are referred, e.g., the origin of polar coordinates or the point of which a line or curve is a polar.
• Biology an extremity of the main axis of a cell, organ, or part.
• each of the two opposite points on the surface of a magnet at which magnetic forces are strongest.
• each of two terminals (positive and negative) of an electric cell, battery, or machine.
• one of two opposed or contradictory principles or ideas:Miriam and Rebecca represent two poles in the argument about transracial adoption