concatenation -- (the state of being linked together as in a chain; union in a linked series)
concatenation -- (the linking together of a consecutive series of symbols or events or ideas etc; "it was caused by an improbable concatenation of circumstances")
chain, concatenation -- (a series of things depending on each other as if linked together; "the chain of command"; "a complicated concatenation of circumstances")
concatenation -- (the act of linking together as in a series or chain)