safety chainEnglishOxford New American Dictionarysafety chain /ˈsāftē CHān, ˈseɪfti tʃeɪn/ ▸ noun a chain fitted for security purposes, especially on a door, watch, or piece of jewelry.
EnglishOxford New American DictionaryEnglishOxford New American Dictionary
EnglishOxford New American Dictionary