imperforate /im-pûrˈfə-rət/ or imperforated /-rā-tid/

1. Not pierced through or perforated
2. Having no opening
3. Lacking an opening, esp as a result of abnormal development, as in imperforate anus (medicine)
4. Without perforations as a means of separation, as a sheet of postage stamps

imperˈforable adjective

imperforāˈtion noun

• open a person's eyes
• open-armed
• open book
• plaiter
• plaiters
• plaiting
• plaitings
• plaits
• plan
• planar
• planar diode
• planar diodes
• planarian
• planarians
• planation
• planations
• planch
• planched
• planches
• planchet
• planchets
• planchette
• planchettes
• planching
• Planck's constant