spectroheliograph

[ spek-troh-hee-lee-uh-graf, -grahf ]
/ ˌspɛk troʊˈhi li əˌgræf, -ˌgrɑf /

noun

an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.

Origin of spectroheliograph

First recorded in 1890–95; spectro- + heliograph

OTHER WORDS FROM spectroheliograph

spec·tro·he·li·o·graph·ic [spek-troh-hee-lee-uh-graf-ik] /ˌspɛk troʊˌhi li əˈgræf ɪk/, adjective

Words nearby spectroheliograph

spectrofluorimeter, spectrogram, spectrograph, spectrography, spectroheliogram, spectroheliograph, spectrohelioscope, spectrology, spectrometer, spectrometry, spectromicroscope

Example sentences from the Web for spectroheliograph

British Dictionary definitions for spectroheliograph

spectroheliograph
/ (ˌspɛktrəʊˈhiːlɪəˌɡrɑːf, -ˌɡræf) /

noun

an instrument used to obtain an image of the sun in light of a particular wavelength, such as calcium or hydrogen, to show the distribution of the element over the surface and in the solar atmosphere. The image obtained is a spectroheliogram

Derived forms of spectroheliograph

spectroheliographic, adjective

Word Origin for spectroheliograph

C19: from spectro- + helio- + -graph