玉たま繭まゆ

noun

dupion; double cocoon

A double cocoon formed jointly by two or more silkworms, producing a coarse, irregular silk. The term is technical and used in sericulture and textiles.

• 玉たま繭まゆから取とれる糸いとは節ふしがあって独どく特とくの風ふう合あいがある。

  Thread obtained from dupion cocoons has slubs and a unique texture.

noun

cocoon

General term for a silkworm cocoon. In everyday contexts, 繭 (まゆ) is more common; 玉繭 is used especially when the spherical shape is emphasized or in technical descriptions.

• 蚕かいこが作つくった玉たま繭まゆを集あつめて糸いとを紡つむぐ。

  We collect the cocoons made by silkworms and spin thread.