アセンダー

noun

ascender (typography)

Technical typography term for the part of a lowercase letter that extends above the x-height, as in 'b', 'd', 'h'.

• 「b」のアセンダーは、xハイトより上うえに出でている部ぶ分ぶんです。

  The ascender of 'b' is the part that extends above the x-height.