heliograph
he
ˈhɛ
he
liog
ˌlɪɑ:g
liaag
raph
ræf
rāf
British pronunciation
/hˈɛlɪˌɒɡɹaf/

英語での「heliograph」の定義と意味

Heliograph
01

ヘリオグラフ, 太陽光を使った信号装置

a device used for signaling over long distances using sunlight and a mirror, in which the mirror is used to reflect sunlight in a coded pattern to convey messages
to heliograph
01

鏡と太陽光を使って信号を送る, ヘリオグラフで信号を送る

signal by means of a mirror and the using the sun's rays
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