He"li*o*graph (?), n. [Helio- + -graph.]ets>
1.
A picture taken by heliography; a photograph.
2.
An instrument for taking photographs of the sun.
3.
An apparatus for telegraphing by means of the sun's rays. See Heliotrope, 3.
© Webster 1913
He"li*o*graph (?), v. t.
1.
To telegraph, or signal, with a heliograph.
2.
To photograph by sunlight.
© Webster 1913