|imperforate (ɪmˈpɜːfərɪt, -ˌreɪt)|
|2.||Compare perforate imperf (of a postage stamp) not provided with perforation or any other means of separation|
|3.||anatomy (of a bodily part, such as the anus) without the normal opening|
imperforate im·per·fo·rate (ĭm-pûr'fər-ĭt)
Lacking a normal opening.
imperforation im·per·fo·ra·tion (ĭm-pûr'fə-rā'shən)
The condition of being abnormally occluded or closed.