The circumcenter is a point in a triangle that is equidistant from all three vertices. It is the intersection of the perpendicular bisectors of the triangle's sides. This point serves as the center of the circumcircle, which is the circle that passes through all three vertices of the triangle. To find the circumcenter, you can draw the perpendicular bisectors of at least two sides of the triangle. The point where these bisectors intersect is the circumcenter. This concept is important in geometry and is related to other topics such as circumcircle and triangles.