Extremely small or fine; minute; used to describe very small details, differences, or particles.
顕微鏡で見ると、表面に微細な傷がいくつも見つかった。
Under the microscope, many minute scratches were found on the surface.
この材料は微細な粒子で構成されているため、扱いに注意が必要だ。
Since this material is made up of fine particles, it needs to be handled carefully.
微細な違いを見逃さないことが研究では重要だ。
Not overlooking subtle differences is important in research.