The nature of possible underlying disease states including cancer or infections can often be detected by microscopically visualizing cytological changes in cells which are exfoliated and captured by fluid extraction from body cavity, brushings, washings, or fine needle aspirations.
Cloister definition, a covered walk, especially in a religious institution, having an open arcade or colonnade usually opening onto a courtyard. See more.
Definition of proper. 1  1 : the parts of the Mass that vary according to the liturgical calendar. 2  2 : the part of a missal or breviary containing the proper of the Mass and the offices proper to the holy days of the liturgical year.