microbe

/ˈmaɪkroʊb/
noun
  1. A very small living thing, such as a bacterium or virus, that can only be seen with a microscope.
    • The soil is full of beneficial microbes that help plants grow.
    • Washing your hands helps remove harmful microbes that can cause illness.
    • Scientists discovered a new microbe living in the hot springs of Yellowstone.
What does "microbe" mean? | whatsthatwordmean | whatsthatwordmean