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magnifier of the image of small objects
a magnifier of images of distant objects
a modified microscope used to study capillary vessels
any telescope designed to collect and record electromagnetic radiation from cosmic sources
a small telescope attached to a large telescope to use in setting the line of the larger one
a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it
microscope consisting of an optical instrument that magnifies the image of an object
a telescope designed to make observations of the sun
a telescope mounted on an axis running east and west and used to time the transit of a celestial body across the meridian