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Dictionary


he•li•o•graph



Pronunciation: (hē'lē-u-graf", -gräf"), [key]
n.
1. a device for signaling by means of a movable mirror that reflects beams of light, esp. sunlight, to a distance.
2. Astron.photoheliograph.
3. Meteorol.an instrument for recording the duration and intensity of sunshine.
4. Photog., Print.an early type of photoengraving made on a metal plate coated with sensitized asphalt.

v.t., v.i.
to communicate by heliograph.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

heliogramheliogravure
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