What is another word for heliogram?
Pronunciation: [hˈɛlɪˌɒɡɹam] (IPA) 
Heliogram is a term used to describe a message sent by reflecting sunlight off a mirror or other reflective object. However, there are a few synonyms for this word that might be useful to know. One possible synonym is "solar message," which has a similar meaning but may be more descriptive. Another option is "sun signal," which again conveys the idea of sending a message via sunlight. Some may also use "mirror message" or "reflected communication" as synonyms for heliogram. While these terms may not be as common as heliogram itself, they can be helpful in describing this unique form of communication.
