megascopic
me·gas·co·pic
adjective
1.
visible to the naked eye (especially of rocks and anatomical features)
Origin
From mega- + -scopic.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.