noun
Edo-period hairpin for side volume
Archaic term for a bow-shaped hairpin made of whale bone or copper, used to add volume to the sides of a woman's hairstyle during the Edo period.
浮世絵には、鬢差しで髪をふくらませた女性がよく描かれている。
Women with their hair puffed out using binsashi are often depicted in ukiyo-e prints.