intersection (geometry)
point, line, or curve common to two or more objects such as lines, curves, planes, and surfaces
cross section
intersection of a body in 3D space with a plane
intersection curve
the curve resulting from the intersection of two surfaces, or two solid polyhedra
metacenter
on a heeling ship, the point at which a vertical line through the heeled centre of buoyancy crosses the line through the original, vertical centre of buoyancy
orbital node
point where an orbit crosses a plane of reference to which it is inclined
line-plane intersection
intersection of a line and a plane can be the empty set, a point, or a line