also: あきご
noun
autumn silkworms; fall silkworms
Refers to silkworms raised in the autumn season, as opposed to spring or summer silkworms.
秋蚕の繭は春蚕より小さいことが多い。
Autumn silkworm cocoons are often smaller than spring ones.
この地域では秋蚕の飼育が盛んだ。
Raising autumn silkworms is popular in this region.
Compound of 秋 (autumn) and 蚕 (silkworm). The reading しゅうさん uses the on'yomi of both characters, while あきご combines the kun'yomi of 秋 with a voiced variant of 蚕 (こ → ご).