Aseptic (adjective)

1. Free from pathogenic organisms, especially bacteria.
2. Sterilized or treated to prevent the growth of microorganisms.

Origin:

From greek a- meaning without + septikos meaning putrefying, from septos meaning rotten.

Examples:

1. The surgical instruments were kept in an aseptic environment.
2. An aseptic technique was used to prevent infection during the operation.
3. The wound was treated with aseptic dressing to prevent infection.
4. The aseptic packaging of the food kept it fresh for a longer time.
5. The aseptic conditions in the lab were essential for the success of the experiment.