| NOUN | artifact | paraboloid reflector, parabolic reflector | a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam |
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| Meaning | A concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam. | |
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| Synonym | parabolic reflector | |
| Narrower | parabolic mirror | A parabolic reflector for light radiation |
| Broader | reflector | device that reflects radiation |
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