Definitions for "Megascopic"
Large enough to be seen; -- said of the larger structural features and components of rocks which do not require the use of the microscope to be perceived. Opposed to microscopic.
visible to the naked eye (especially of rocks and anatomical features)
Of or pertaining to the megascope or the projection upon a screen of images of opaque objects.
Enlarged or magnified; -- said of images or of photographic pictures, etc.
Keywords:  adj, observable, scales, large, over
adj : observable over very large scales