Pronunciation: ( Fr. kôr-dôn sa-nē-ter'),[key] —pl.cor•dons sa•ni•tairesPronunciation: ( Fr. kôr-dôn sa-nē-ter').[key] 1. a line around a quarantined area guarded to prevent the spread of a disease by restricting passage into or out of the area.
2. a group of neighboring, generally neutral states forming a geographical barrier between two states having aggressive military or ideological aims against each other.