lockstitch
/ˈlɑkˌstɪtʃ/
noun
- A type of stitch made by a sewing machine that uses two threads (one from above and one from below) to create a strong, locked seam.
- The tailor used a lockstitch to sew the jeans because it is very durable.
- Most home sewing machines produce a lockstitch by default.
- A lockstitch is stronger than a chain stitch for most fabrics.