1 Small apartment of any sort, such as a room in a dormitory or inn, but especially a confined study-bedroom allotted to a monk or nun in a monastery. Also a penitential cell in the Middle Ages in which penitents were immured.
2 Secure room with bed or beds in a prison.
3 Any small cavity or room.
4 Cella or naos.
5Web of a vault framed by the ribs, or one surface of a groin vault.
6 In timber-framed structures, one room or unit. A single-cell plan is one volume, while a two-cell plan may have a cross-entry or cross-passage, and a three-cell plan will have a cross-passage, cross-entry, or lobby-entry.