The Collaborative International Dictionary of English v.0.48:
Macroscopic \Mac`ro*scop"ic\, Macroscopical \Mac`ro*scop"ic*al\, a. [Macro- + Gr. ? to view.] Visible to the unassisted eye; -- as opposed to microscopic. -- Mac`ro*scop"ic*al*ly, adv. [1913 Webster]WordNet (r) 3.0 (2006):
macroscopically adv 1: without using a microscope; "The tubes were examined macroscopically"