free from contamination caused by harmful bacteria, viruses, or other micro-organisms
无菌的;防感染的。
(of surgical practice)aiming at the complete exclusion of harmful micro-organisms
(外科手术)完全无菌的。
(of a wound, instrument, or dressing)surgically sterile or sterilized
(伤口,手术器具,包扎)严密消毒的。