Definition of pin stitch in US English:

pin stitch

noun

US
  • A drawn fabric stitch worked with a thick needle and a fine thread, creating a decorative openwork effect. In later use also: blanket stitch.

Origin

Late 19th century; earliest use found in Godey's Lady's Book. From pin + stitch.

Pronunciation

pin stitch

/ˈpɪn ˌstɪtʃ/