heliograph
- noun
- /ˈhiːliəˌɡræf/
- Archaic
:
heliógrafo
- I understand a freight ship relayed to London by a wireless a message she picked up while passing - that was flashed by heliograph.
- the heliograph went on display
Examples
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In the old military camp, a heliograph was set up to communicate with other units by flashing sunlight at specific intervals.
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These are not bad, but as you can see, the heliograph is the future.
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I wa- I was thinking perhaps heliograph.
-
Moving light flashed off it like a heliograph.
Fiction book (2001) -
The soldier used a heliograph to send a message across the valley using sunlight to signal his comrades.
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During the demonstration, they showcased how the heliograph could transmit signals over long distances by reflecting sunlight.
How Fast
- Archaic
- Archaic
- Specialized
7
4.8
Surface Forms
Morphology
heliograph = helio + graph
The word is built from classical combining forms meaning 'sun' and 'writing', but the referent is a specialized communication device rather than a fully everyday transparent combination.
Etymology
Heliograph comes from Greek parts helio- 'sun' and -graph 'write', the same -graph you see in telegraph. So a heliograph is like a 'sun-writer', a device that uses mirrors to send messages with flashes of sunlight.