The process or act of purging, such as by the use of a purgative. / The process or act of cleansing from sin or guilt. / (archaic) Exoneration or the act undertaken to achieve exoneration.

plural of nonanswer

plural of bunya pine

(mathematics) (of a function) That it is continuous almost everywhere, except at certain points at which it is either upper semi-continuous or lower semi-continuous.