coronagraph

or co·ro·no·graph

[ kuh-roh-nuh-graf, -grahf ]
/ kəˈroʊ nəˌgræf, -ˌgrɑf /

noun Astronomy.

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

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

corona glandis, corona radiata, coronach, coronado, coronado, francisco, coronagraph, coronal, coronal hole, coronal mass ejection, coronal plane, coronal suture

British Dictionary definitions for coronagraph

coronagraph

coronograph

/ (kəˈrəʊnəˌɡrɑːf, -ˌɡræf) /

noun

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