Definition of Heliograph in English :

Define Heliograph in English

Heliograph meaning in English

Meaning of Heliograph in English

Pronunciation of Heliograph in English

Heliograph pronunciation in English

Pronounce Heliograph in English

Heliograph

see synonyms of heliograph

Noun

1. heliograph

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

Verb

2. heliograph

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

WordNet Lexical Database for English. Princeton University. 2010.


Heliograph

see synonyms of heliograph
noun
1. 
an instrument with mirrors and a shutter used for sending messages in Morse code by reflecting the sun's rays
2. 
a device used to photograph the sun

Collins English Dictionary. Copyright © HarperCollins Publishers


Heliograph

see synonyms of heliograph
noun
1. 
a permanent image formed on a glass plate by an early photographic process
2. 
a device for sending messages or signaling by flashing the sun's rays from a mirror
verb transitive, verb intransitive
3. 
to signal or communicate by heliograph

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


Heliograph

see synonyms of heliograph
n.
1. A device for transmitting messages by reflecting sunlight.
2. A device capable of imaging the surface and outer regions of the sun.
v. he·li·o·graphed, he·li·o·graph·ing, he·li·o·graphs
v.tr.
To send (a message) by heliograph.
v.intr.
To send a heliograph.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.