temporal arrangement, temporal order - arrangement of events in time

pelting, rain - anything happening rapidly or in quick successive; "a rain of bullets"; "a pelting of insults"

rotation - a planned recurrent sequence (of crops or personnel etc.); "crop rotation makes a balanced demand on the fertility of the soil"; "the manager had only four starting pitchers in his rotation"

row - a continuous chronological succession without an interruption; "they won the championship three years in a row"

run - an unbroken chronological sequence; "the play had a long run on Broadway"; "the team enjoyed a brief run of victories"

series - similar things placed in order or happening one after another; "they were investigating a series of bank robberies"

cascade - a succession of stages or operations or processes or units; "progressing in severity as though a cascade of genetic damage was occurring"; "separation of isotopes by a cascade of processes"

parade - an extended (often showy) succession of persons or things; "a parade of strollers on the mall"; "a parade of witnesses"

streak, run - an unbroken series of events; "had a streak of bad luck"; "Nicklaus had a run of birdies"

ordering, order - putting in order; "there were mistakes in the ordering of items on the list"

alternation - successive change from one thing or state to another and back again

bionomics, environmental science, ecology - the branch of biology concerned with the relations between organisms and their environment

natural action, natural process, activity, action - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"

acquisition - the act of contracting or assuming or acquiring possession of something; "the acquisition of wealth"; "the acquisition of one company by another"