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coronagraph
coronagraph definition
co·rona·graph (kə rō′nə graf′)
noun
a telescope designed for observing the corona of the sun by means of devices that obstruct the light of the sun's disk
Etymology: earlier coronograph < coron(a) + -o- + -graph
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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