cross section
intersection of a body in 3D space with a plane
toric section
intersection of a plane with a torus
geological cross section
diagram of a 2D or 3D cross section through geological structures
airfoil
cross-sectional shape of a wing, blade (of a propeller, rotor, or turbine), or sail
video frame
electronically coded still image forming part of a video
conic section
curve obtained by intersecting a cone and a plane
radar cross-section
measure of how detectable an object is by radar