Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun heliograph

1 sense of heliograph

Sense 1
heliograph -- (an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on)
       => apparatus, setup -- (equipment designed to serve a specific function)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb heliograph

1 sense of heliograph

Sense 1
heliograph -- (signal by means of a mirror and the using the sun's rays)
       => sign, signal, signalize, signalise -- (communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu")