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    cassegrainian telescope

    cassegrainian telescope - Dictionary definition and meaning for word cassegrainian telescope

    Definition
    (noun) a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror
    Synonyms : gregorian telescope

Word used in video below:
text: telescope have we got a telescope
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