heliograph
heliograph · heliographs
An apparatus for signalling by means of a moveable mirror which reflects flashes of…An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
US/ˈhiː.li.əˌɡɹæf/
Значение
значений: 5An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
A heliogram.
An instrument for measuring the intensity of sunlight.
A device for photographing the sun.
(устаревшее)A photograph.
Ещё определения
- an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
Происхождение
From helio- + -graph.From helio- + -graph.
Wiktionary, CC BY-SA 4.0 · source
Формы
мн. число: heliographs| Ед. число | heliograph |
|---|---|
| Мн. число | heliographs |
правильный