heliograph
a device for signaling by means of a movable mirror that reflects beams of light, especially sunlight, to a distance.
Astronomy. photoheliograph.
Meteorology. an instrument for recording the duration and intensity of sunshine.
Photography, Printing. an early type of photoengraving made on a metal plate coated with sensitized asphalt.
to communicate by heliograph.
Origin of heliograph
1Other words from heliograph
- he·li·og·ra·pher [hee-lee-og-ruh-fer], /ˌhi liˈɒg rə fər/, noun
- he·li·o·graph·ic [hee-lee-uh-graf-ik], /ˌhi li əˈgræf ɪk/, he·li·o·graph·i·cal, adjective
- he·li·o·graph·i·cal·ly, adverb
- he·li·og·ra·phy, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use heliograph in a sentence
"I wish Miss Young would teach us heliography next term," said Honor.
The New Girl at St. Chad's | Angela BrazilHe called his process "heliography," helios being the Greek word for sun.
Great Inventions and Discoveries | Willis Duff Piercy
British Dictionary definitions for heliograph
/ (ˈhiːlɪəʊˌɡrɑːf, -ˌɡræf) /
an instrument with mirrors and a shutter used for sending messages in Morse code by reflecting the sun's rays
a device used to photograph the sun
Derived forms of heliograph
- heliographer (ˌhiːlɪˈɒɡrəfə), noun
- heliographic (ˌhiːlɪəʊˈɡræfɪk) or heliographical, adjective
- heliography, noun
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
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