I think it comes from the word germen.
germ free
The word "germ" can be a noun. It refers to a microorganism, especially one causing disease.
A germ cell is another word for a sex cell, either sperm or eggs as well as a pathogen or bacterium
Microbes
Germ
germ
Microorganism
germ and gernla
the difference is when a temporary slide has a germ it can come off and on a permanent slide has a germ on it it can't come off
One that causes disease
The germ divided into a new pair.I have discovered a new species of germ.If I find a single germ in my bathroom, you're fired.
sterile, aseptic