thick thread; low count yarn
Refers to yarn or thread that is thick or of low count, used in textiles and crafts. The term is neutral and technical.
This sweater is knitted with thick yarn.
太糸を使うと、編み物が早く仕上がる。
Using thick thread makes knitting finish faster.
Compound of 太 (futo, 'thick') and 糸 (ito, 'thread').