mega·scop·ic /ˌmɛgəˈskɑpɪk/
  (a.)放大的,肉眼可見的,依照肉眼的
  Meg·a·scop·ic Meg·a·scop·ic·al, a.
  1. Physics Of or pertaining to the megascope or the projection upon a screen of images of opaque objects. (b) Enlarged or magnified; -- said of images or of photographic pictures, etc.
  2. Geol. 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.
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  megascopic
       adj : visible to the naked eye (especially of rocks and anatomical
             features) [syn: gross]