|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
heliograph
he·li·o·graph / ˈhēlēəˌgraf/ • n. 1. a signaling device by which sunlight is reflected in flashes from a movable mirror. ∎ a message sent in such a way; a heliogram. 2. a telescopic apparatus for photographing the sun. 3. hist. a type of early photographic engraving made using a sensitized silver plate and an asphalt or bitumen varnish. • v. [tr.] 1. dated send (a message) by heliograph. 2. hist. take a heliographic photograph of. DERIVATIVES: he·li·o·graph·ic / ˌhēlēəˈgrafik/ adj. he·li·og·ra·phy / ˌhēlēˈägrəfē/ n. |
|
|
Cite this article
"heliograph." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "heliograph." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O999-heliograph.html "heliograph." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-heliograph.html |
|
heliograph
heliograph [Gr.,=sun-writer], signaling device using flashes of sunlight. It has two mirrors that are used to reflect sunlight on a distant point and a shutter through which the sunlight passes so that messages may be transmitted in telegraphic code by means of long and short flashes. It was used in ancient times and as recently as the 19th cent. by the U.S. army in the SW United States and by the British army in India. |
|
|
Cite this article
"heliograph." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "heliograph." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1E1-heliogra.html "heliograph." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-heliogra.html |
|
heliograph
heliograph
•barf, behalf, calf, chaff, coif, giraffe, Graf, graph, half, laugh, scarf, scrum half, staff, strafe, wing half
•headscarf • mooncalf • bar graph
•telegraph • polygraph • epigraph
•serigraph • cardiograph • radiograph
•spectrograph • micrograph
•lithograph • heliograph
•choreograph • tachograph
•stylograph • holograph • seismograph
•chronograph, monograph
•phonograph • paragraph
•cinematograph • pictograph
•autograph • photograph • flagstaff
•jackstaff • distaff • tipstaff • epitaph
•pikestaff • cenotaph
|
|
|
Cite this article
"heliograph." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "heliograph." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O233-heliograph.html "heliograph." Oxford Dictionary of Rhymes. 2007. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-heliograph.html |
|
Search over 100 encyclopedias and dictionaries:
HighBeam™ Research, Inc. © Copyright 2012. All rights reserved.
The Encyclopedia.com advertising network includes:
