n.
Pronunciation: - ˌ graf
Function: noun
Etymology: International Scientific Vocabulary
Date: 1877
: an apparatus for telegraphing by means of the sun's rays flashed from a mirror
– heliograph transitive verb
n.
Pronunciation: - ˌ graf
Function: noun
Etymology: International Scientific Vocabulary
Date: 1877
: an apparatus for telegraphing by means of the sun's rays flashed from a mirror
– heliograph transitive verb
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012