coronagraph

or co·ro·no·graph

[ kuh-roh-nuh-graf, -grahf ]

nounAstronomy.
  1. an instrument for observing and photographing the sun's corona, consisting of a telescope fitted with lenses, filters, and diaphragms that simulate an eclipse.

Origin of coronagraph

1
1885–90; earlier coronograph.See corona, -graph

Other words from coronagraph

  • co·ro·na·graph·ic [kuh-roh-nuh-graf-ik], /kəˌroʊ nəˈgræf ɪk/, adjective

Words Nearby coronagraph

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use coronagraph in a sentence

British Dictionary definitions for coronagraph

coronagraph

coronograph

/ (kəˈrəʊnəˌɡrɑːf, -ˌɡræf) /


noun
  1. an optical instrument used to simulate an eclipse of the sun so that the faint solar corona can be studied

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