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

• heavens above
• heaven-sent
• heavenward
• heavenwards
• heave-offering
• heave-offerings
• heaver
• heavers
• heaves
• heave-shoulder
• heave the gorge
• heave the lead
• heave the log
• heave to
• heavier
• heavier-than-air
• heavies
• heaviest
• heavily
• heaviness
• heavinesses
• heaving
• heavings
• Heaviside layer
• heavy