糸いと頭がしらじ字FuriganaMeanings1nountop component of the 'thread' radicalTechnical term used in kanji description; refers to the 幺 component as seen in the left part of 幻.「糸いと頭がしら」は、漢かん字じの部ぶ首しゅ「糸いと」の上じょう部ぶの形かたちを指さす言こと葉ばです。"糸頭" is a term that refers to the shape of the top part of the kanji radical "thread."