microgauss
/ˈmaɪkroʊˌɡaʊs/
noun
- A unit of magnetic field strength equal to one millionth of a gauss.
- Astronomers measured the magnetic field of the galaxy at a few microgauss.
- Sensitive instruments can detect changes as small as one microgauss.
- The Earth's magnetic field is about 500 microgauss at the surface.