adj. 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. [MICROSCOPE + -IC.] mi′cro·scopi·cal·ly adv. |
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