microscopic
/ˌmaɪkrəˈskɔpɪk; ˌmaɪkrə`skɑpɪk/, microscopical / -kl; -kl/ adjs
1 too small to be seen without the help of a microscope 用显微镜方可见的; 极微小的
a microscopic creature, particle 微生物、 微粒
of microscopic size 用显微镜才能看见大小的.
2 of or using a microscope 显微镜的; 用显微镜的
microscopic examination of traces of blood 用显微镜作血迹检查.