sewing thread; suture
General term for thread used in sewing; also used in medical contexts for surgical sutures.
縫い糸が足りなくなったので、買い足しに行った。
I ran out of sewing thread, so I went to buy more.
手術後、医師は縫い糸を抜いた。
After the surgery, the doctor removed the sutures.
Standard kanji spelling.
Abbreviated kanji form, less common but still used.
Compound of 縫い (nui, 'sewing', from verb 縫う nuu) and 糸 (ito, 'thread').