けいと毛糸keito
1.

A type of yarn made from spun animal fibers, particularly sheep's wool, commonly used in the creation of knitted or woven textiles.

2.

A specific kind of thread utilized primarily for crafting garments and accessories through knitting techniques, valued for its warmth and texture.

3.

Thread formed from the fur of animals, especially sheep, which is intricately spun for use in various handmade clothing items.

Example:

赤ん坊が毛糸の玉をもつれさせた。