imperforation

uncountable

The state of being without perforation. / (medicine) Absence of perforation in a normally patent structure.

Japanese Meaning

穿孔が存在しない状態 / （医学用語）必要な穿孔が認められない状態

The imperforation of the stamp made it difficult to separate without tearing.

切手に穴が開いていないため、破れずに切り離すのが難しかった。

Sense（1）

The state of being without perforation.

Sense（2）

(medicine) Absence of perforation in a normally patent structure.