Dictionary

coronagraph

noun co·ro·na·graph \kə-ˈrō-nə-ˌgraf\

Definition of CORONAGRAPH

:  a telescope for observation of the sun's corona

Variants of CORONAGRAPH

co·ro·na·graph also co·ro·no·graph \kə-ˈrō-nə-ˌgraf\

First Known Use of CORONAGRAPH

1885

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