Associations to the word «Heliograph»

Wiktionary

HELIOGRAPH, noun. An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
HELIOGRAPH, noun. A heliogram.
HELIOGRAPH, noun. An instrument for measuring the intensity of sunlight.
HELIOGRAPH, noun. A device for photographing the sun.
HELIOGRAPH, noun. (obsolete) A photograph.
HELIOGRAPH, verb. (transitive) To send a message by heliograph.
HELIOGRAPH, verb. (intransitive) To send a heliograph.
HELIOGRAPH, verb. (transitive) (dated) To photograph by sunlight.

Dictionary definition

HELIOGRAPH, noun. An apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on.
HELIOGRAPH, verb. Signal by means of a mirror and the using the sun's rays.

Wise words

Words are but symbols for the relations of things to one another and to us; nowhere do they touch upon absolute truth.
Friedrich Nietzsche