germfree

American  

[jurm-free, -free] / ˈdʒɜrmˈfri, -ˌfri /

Or germ-free

adjective

1. free of germs; sterile.

   This kind of research should be done in a germfree laboratory.

2. (of experimental animals) born and raised under sterile conditions.

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Etymology

Origin of germfree

First recorded in 1930–35; germ + -free

Example Sentences

If you take mice that are germfree, those that have a sterile gut with no commensal bacteria, the phenomenon of oral tolerance does not occur.

From Scientific American

Keep stuff swept and wiped up, but if you are really going for the “germfree” kitchen, you might want to invest in scuba gear.

From New York Times