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.
Clergy [ n. - The body of men set apart, by due ordination, to the service of God, in the Christian church, in distinction from the laity; in England, usually restricted to the ministers of the Established Church.