n. [ L. oppilatio: cf. F. opilation. ] The act of filling or crowding together; a stopping by redundant matter; obstruction, particularly in the lower intestines. Jer. Taylor. [ 1913 Webster ]
(n) (statistics) the entire aggregation of items from which samples can be drawn, Syn. universe, Example:it is an estimate of the mean of the population
(n) the number of inhabitants (either the total number or the number of a particular race or class) in a given place (country or city etc.), Example:people come and go, but the population of this town has remained approximately constant for the past decade; the African-American population of Salt Lake City has been increasing