These assorted nylon ropes are examples of a polyamide.
The definition of a polyamide is a natural or synthetic compound having two or more amide groups.
An example of a polyamide is nylon.
any of various natural or synthetic compounds having two or more amide groups; esp., a polymeric amide, as nylon
Origin of polyamidepoly- + amide
A polymer containing repeated amide groups, as in various kinds of nylon.