lanyard
link and chain
An Albert Chain[After the Prince]
A watch chain can also be called a fob chain.
Another name for a map legend is key.
Index key
One hotel chain name in the U.S. is Marriot, another is Hilton.
Another name for oxidative phosphorylation is electron transport chain.
key west
note
the answer is key
the answer would be.... polypeptide
Also called a Key field.