Sterile

Sterile means free of living microorganisms (microbes); that is, an absence of viruses, bacteria, and fungal spores.

In professional body modification studios is crucial that all equipment is properly sterilized in an autoclave (although in some situations chemical sterilization also works), and all non-porous surfaces are throughly cleaned with a germicidal solution to minimize cross contamination and protect the client.

Sterile also refers to the inability to produce offspring, whether due to natural causes or intentional procedures.