Meaning Of The Word Heliograph

Real Dictionary

What's the definition of Heliograph? Find Heliograph meanings, definitions and more at the Real Dictionary online.

Heliograph Meaning

Heliograph Definition
Heliograph Definition

What's The Definition Of Heliograph?

heliograph in American English
a permanent image formed on a glass plate by an early photographic process
to communicate by heliograph
to signal or communicate by heliograph
noun: a device for signaling by means of a movable mirror that reflects beams of light, esp. sunlight, to a distance

heliograph in British English
noun: an instrument with mirrors and a shutter used for sending messages in Morse code by reflecting the sun's rays

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