(of) a chemical substance able to prevent disease, especially by destroying germs

completely clean, uncontaminated; decontaminating

free from dirt

not dirty; uncluttered

(especially of climate) making people healthy

health-giving

clean; free from any dirt that might cause disease; of, concerned with, the protection of (public) health

clean, germ-free

completely clean; without anything considered bad

very clean; innocent

not able to produce offspring, fruit etc; without a productive purpose; producing nothing; free from living germs

unproductive, clean

making a person healthy

healthy, decent