柯林斯詞典microorganism /?ma?kr?????ɡ??n?z?m/ (microorganisms) 1. N-COUNT A microorganism is a very small living thing which you can only see if you use a microscope. 微生物 返回 microorganism劍橋詞典a living thing that on its own is too small to be seen without a microscope 微生物 返回 microorganism