Definition: The line joining the points of contact of tangents drawn to meet a curve from a point called the pole of the line.

Alright class, settle down now, let’s dive in with a bow! We have a tricky word today, “polar,” it's true, And that dictionary definition? Quite complex for you! Let's break it down slowly, piece by piece, don't you see? It’s all about lines and curves, a geometric decree. Think of a curve, like a winding road, With a point on it – a special code. That point is the "pole," you understand, The center around which things stand. Then draw tangents! Lines that gently meet, Touching the curve, oh so sweet! These tangents meet at a single place, A line of contact, with elegant grace. The “line joining the points” – it’s where they reside, That's the 'polar' coordinate, open wide! It’s a way to describe a position, you see, Using distance and an angle, perfectly free! Essentially: "Polar" describes how a point on a curve is located by its distance from that central "pole" and the angle it makes with a reference line. Do you have any questions about this concept? Don't hesitate to ask - let’s explore it further!