safety chain
noun
1
a
: a normally slack chain for preventing excessive movement between a railroad car truck and a car body in sluing
b
: a heavy chain by which railroad cars may be connected to protect against accidental uncoupling
2
: a small chain used as a secondary safeguard on a piece of jewelry (as a watch or bracelet)
3
: a chain formed of sheet metal links with an elongated hole through each broad end and constructed by a repeated series of doubling a link upon itself, slipping the next link through the two now superimposed holes of the first, and doubling it
Love words? Need even more definitions?
Merriam-Webster unabridged
Share