Unscramble

h 4 e 1 l 1 i 1 o 1 g 2 r 1 a 1 p 3 h 4

10 letters · 19 points in Scrabble

Meaning

noun an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on

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

originFrom helio- + -graph.

Etymology from Wiktionary, CC BY-SA 3.0

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