microscopical
 (a.)顯微鏡的
 mi·cro·scop·i·cal /-ɪkəl/ 形容詞
 Mi·cro·scop·ic Mi·cro·scop·ic·al a.
 1. Of or pertaining to the microscope or to microscopy; made with a microscope; as, microscopic observation.
 2. Able to see extremely minute objects.
    Why has not man a microscopic eye?   --Pope.
 3. Very small. Specifically, visible only by the aid of a microscope; as, a microscopic insect; also used figuratively; as, a microscopic advantage.
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 microscopical
      adj 1: of or relating to or used in microscopy; "microscopic
             analysis"; "microscopical examination" [syn: microscopic]
      2: too small to be seen except under a microscope [syn: microscopic,
          small] [ant: macroscopic]