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HELIOGRAPH

“HELIOGRAPH” is a valid word.

19 Scrabble points
20 Words with Friends
10 letters

Definition

noun

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

verb

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

< 10-letter words: HELIOGRAPH

8-letter words 1