— said of images or of photographic pictures, ·etc.
II. Megascopical·add.·adj Of or pertaining to the megascope or the projection upon a screen of images of opaque objects.
III. Megascopical·add.·adj 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.