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🇫🇷French Source WordCode: FR

héliographe

Pronunciation / Transliteration: el.jo.ɡʁaf

🇬🇧 Direct English Meaning:
Heliograph/ˈhiː.li.ə.ɡræf/
nounverbCEFR C2 (Proficient)Top #45000 frequency
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🇫🇷 Example Sentence in French:

"L'armée a utilisé l'héliographe pour transmettre des messages codés."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A signaling device by which sunlight is flashed in pulses using a movable mirror, formerly used for military communication.

    "Before radio communication, troops in the desert relied on the heliograph to send messages across vast distances."
As verb
  1. 1

    To signal or transmit messages by means of a heliograph.

    "The outpost managed to heliograph the coordinates back to the main base before sunset."
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Thesaurus & Semantic Spectrum

Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Greek words 'hēlios' meaning 'sun' and 'graphē' meaning 'writing' or 'drawing'. Coined in the 19th century, the term originally referred to various instruments that recorded sunlight or used the sun's rays for signaling before becoming specifically associated with solar telegraphy.

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Thesaurus & Synonyms Graph

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