vô trùng 
aseptic, sterile, pasteurized [ vô ] : (1) in-, im-, (negative prefix); (2) in, at, on; (3) to go into, enter [= vào]
[ trùng ] : (1) to coincide; (2) worm
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
vô trùng aseptic, sterile, pasteurized