VividLex

Home / Thesaurus / heliographs

Thesaurus: heliographs

n an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on v signal by means of a mirror and the using the sun's rays

Full dictionary entry Search Lens associations

Related headwords

Definitions

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