綴とじ目め

noun

seam; binding crease

Refers to the line or crease where pages are bound together, such as in a book or notebook.

• この本ほんは綴とじ目めが弱よわくなっている。

  The binding of this book is getting weak.

• ノートの綴とじ目めに沿そってページを切きり取とる。

  Tear out the page along the binding crease of the notebook.