microscopic

(mīˌkrə-skŏpˈĭk) also mi·cro·scop·i·cal (-ĭ-kəl)

1. a. Too small to be seen by the unaided eye but large enough to be studied under a microscope.
   b. Of, relating to, or concerned with a microscope.
2. Exceedingly small; minute: “The activities of men . . . were reduced to a microscopic scale” (John Hersey).
3. Characterized by or done with extreme attention to detail: a microscopic investigation.

Related Forms:

• miˌcro·scopˈi·cal·ly adverb