[ spek-troh-hee-lee-uh-graf, -grahf ]
/ ˌspɛk troʊˈhi li əˌgræf, -ˌgrɑf /
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.
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OTHER WORDS FROM spectroheliographspec·tro·he·li·o·graph·ic [spek-troh-hee-lee-uh-graf-ik] /ˌspɛk troʊˌhi li əˈgræf ɪk/, adjective
Words nearby spectroheliograph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for spectroheliograph
In the subterranean chamber is the spectroheliograph of exceptional size and power.Astronomy|David Todd
He moved to the spectroheliograph, where the zed-ray connections were still humming.
British Dictionary definitions for spectroheliograph
/ (ˌspɛktrəʊˈhiːlɪəˌɡrɑːf, -ˌɡræf) /
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 spectroheliographspectroheliographic, adjective
Word Origin for spectroheliograph
C19: from spectro- + helio- + -graph
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012