English word spectroheliogram comes from English spectro- (Optical spectra.), English heliogram (A message transmitted by a heliograph.)
Dictionary entry | Language | Definition |
---|---|---|
spectro- | English (eng) | Optical spectra. |
heliogram | English (eng) | A message transmitted by a heliograph. |
spectroheliogram | English (eng) | (astronomy) a photograph taken using a spectroheliograph. |