👉 In mathematics, a semilucent object is an object that has both two faces and one or more edges sharing a common edge. The term "semilucent" is often used in the context of geometric shapes like spheres, cones, and cylinders. A semilucent object is defined as having at least three distinct faces: two faces on each side (the outermost) and one face on the middle plane. These faces are typically colored differently from other faces, with a sem