paraboloid
Parabola spun around
A paraboloid is a three-dimensional surface generated by rotating a parabola around its axis.
The shape appears in satellite dishes, car headlights, and telescope mirrors, where its geometry focuses parallel rays to a single point.
The antenna's paraboloid shape concentrates the signal.
Tapering to apex
- sectionDistinct divided part
- ellipseConic section curve
- hyperbolaCurve with two branches
- focusConcentrated attention point
directrix · axis · symmetry · quadratic · equation · vertex · asymptote · tangent
Food container or recipe
- satelliteOrbiting celestial body
- receiverOne who accepts transmission
- radioElectromagnetic wave receiver
- wavesTraveling energy disturbances
signal · transmission · radar · communication · broadcast · downlink · uplink · reflector
Reflective viewing surface
- telescopeInstrument magnifying faraway objects
- reflectorLight-redirecting surface
- focusConcentrated attention point
- beamStructural support member
light · concentrator · projection · focal · searchlight · headlight · flashlight · collimator
Curving inward like dishware
- domeRounded vault forming roof
- convexCurved outward externally
- concaveCurving inward, not outward
- curvedSmoothly bent, not angular
elliptic · hyperbolic · rotational · curvilinear · rounded · bulged · spindle · dimensional
conic
Tapering to apex
focus · directrix · axis · symmetry · quadratic · equation · vertex · asymptote · tangent · plane
dish
Food container or recipe
- satelliteOrbiting celestial body
- receiverOne who accepts transmission
- radioElectromagnetic wave receiver
waves · signal · transmission · radar · communication · broadcast · downlink · uplink · reflector · microwave
mirror
Reflective viewing surface
- telescopeInstrument magnifying faraway objects
- reflectorLight-redirecting surface
- focusConcentrated attention point
beam · light · concentrator · projection · focal · searchlight · headlight · flashlight · collimator · caustic
bowl-shaped
Curving inward like dishware
curved · elliptic · hyperbolic · rotational · curvilinear · rounded · bulged · spindle · dimensional · conical
dome
Rounded vault forming roof
membrane · tensile · structure · canopy · skylight · pavilion
paraboloidsphere
Perfectly round solid
plane · spheroid · flat surface · ellipsoid · hyperboloid