spectrohelioscopePronunciation: /ˌspɛktrə(ʊ)ˈhiːlɪəskəʊp/Definition of spectrohelioscope noun a device similar to a spectroheliograph which produces a directly observable monochromatic image of the sun. spectrohelioscope in other Oxford dictionaries Definition of spectrohelioscope in the US English dictionary
