concatenation in WordNet English dictionary

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