MIC'ROSCOPE, noun [Gr. small, and to view.] An optical instrument consisting of lenses or mirrors, which magnify objects, and thus render visible minute objects which cannot be seen by the naked eye, or enlarge the apparent magnitude of small visible bodies, so as to enable us to examine their texture or construction.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI