a. [ Pref. a- not + septic. ] 1. Not liable to putrefaction; nonputrescent. [ 1913 Webster ]
2. free from pathogenic microorganisms; sterile; as, aseptic operating conditions. [ PJC ]
3. [ metaphorical ] lacking emotion, human warmth, or excitement. [ PJC ]
n. An aseptic substance. [ 1913 Webster ]