Definition: The term "multifilament" refers to a type of fiber that is made up of multiple strands, where each strand has a different length and diameter. These strands are usually coiled or wound together in a specific pattern, creating a complex structure that allows for a wide range of physical properties such as strength, flexibility, and tensile strength. Multifilament fibers can be used in a variety of applications, including textiles, medical devices, and electronics. They have been used to create