Zipper is a connecting piece which relies on the continuous chain teeth to
make the articles come together or separate. It is now widely used in clothing,
bags, tents and so on.
Definition of zipper:
1. A fastener consisting of a row of metal teeth or plastic teeth on each
strip is used to connect the edge of the opening (such as the mouth of clothes
or bags). A sliding piece can pull two rows of teeth into the interlocking
position to close the opening;
2、A chain attached to something (as something that is hoisted or dropped)
to tighten, stabilize, or guide it.