蚕 silkworm 10 strokes taught in grade 6 old JLPT 1 #2272 in newspapers Readings Onサン、テン Kunかいこ、こ In Chinese 蚕, traditional 蠶 Words written with it 蚕 かいこ silkworm (Bombyx mori) 養蚕 ようさん sericulture 蚕糸 さんし silk thread