paraboloidal reflector

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paraboloidal reflector [pə¦rab·ə¦lȯid·əl ri′flek·tər]

(electromagnetism)

An antenna having a concave surface which is a paraboloid of revolution; it concentrates radiation from a source at its focal point into a beam. Also known as paraboloidal antenna.

(optics)

A concave mirror which is a paraboloid of revolution and produces parallel rays of light from a source located at the focus of the parabola. Also known as parabolic reflector.

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