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