noun
- a three-dimensional surface formed by rotating a parabola around its axis
Usage: geometry; mathematics
Examples
- The satellite dish has the shape of a paraboloid to focus radio waves.
- In calculus class, we studied how to find the volume of a paraboloid.
- The reflector telescope uses a paraboloid mirror to collect light.
- Engineers designed the antenna as a paraboloid for maximum signal strength.
- The water tower’s bottom section resembles a paraboloid.
- Students learned to graph paraboloid surfaces in three dimensions.