photo heliograph

pho·to·he·li·o·graph

[foh-tuh-hee-lee-uh-graf, -grahf]
noun Astronomy.
an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.
Also called heliograph.


Origin:
1860–65; photo- + heliograph

pho·to·he·li·o·graph·ic [foh-tuh-hee-lee-uh-graf-ik] , adjective
pho·to·he·li·og·ra·phy [foh-tuh-hee-lee-og-ruh-fee] , noun
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Photo heliograph is always a great word to know.
So is gobo. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a gadget; dingus; thingumbob.
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