English dictionary
heliograph meaning and definition
Definition and meaning of heliograph at MeaningMonkey.org. heliograph meaning and definition in the English Dictionary.HELIOGRAPH noun
Definition of heliograph (noun)
- an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
HELIOGRAPH verb
Definition of heliograph (verb)
- signal by means of a mirror and the using the sun's rays
Source: Princeton University Wordnet