Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
optical device | Yes | No | No | No |
coelostat | Yes | No | No | No |
optical device (noun) | coelostat (noun) |
---|---|
a device for producing or controlling light | optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror |