monofilament

This term is primarily used in technical, industrial, and medical contexts to distinguish a single-strand material from multifilament or braided alternatives. In fishing and surgery, the choice between monofilament and braided lines involves a trade-off between smoothness and strength; monofilament is generally more flexible and less prone to absorbing fluids, whereas braided lines are stronger for their diameter.

When used as an adjective, it describes the structural composition of the material. When used as a noun, it refers to the material itself or a specific product made from it, such as a spool of fishing line.