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

• oyster-farms
• oyster-field
• oyster-fields
• oyster-fisheries
• oyster-fishery
• oystering
• oyster-knife
• oyster-knives
• oyster mushroom
• oyster mushrooms
• oyster-park
• oyster-parks
• oyster-patties
• oyster-patty
• oyster plant
• oyster plants
• oysters
• oyster-shell
• oyster-shells
• oyster-tongs
• oyster-wench
• oyster-wenches
• oyster-wife
• oyster-wives
• oyster-woman