ˌ ̷ ̷(ˌ) ̷ ̷ˈhēlēəˌskōp noun
Etymology: International Scientific Vocabulary spectro- + heli- + -scope
1. : spectroheliograph
2. : an instrument similar to a spectroheliograph used for visual as distinguished from photographic observations
• spec·tro·he·li·o·scop·ic | ̷ ̷(ˌ) ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷|skäpik adjective