Source : WordNet®

behaviour
     n 1: the action or reaction of something (as a machine or
          substance) under specified circumstances; "the behavior
          of small particles can be studied in experiments" [syn:
          {behavior}]
     2: (behavioral attributes) the way a person behaves toward
        other people [syn: {demeanor}, {demeanour}, {behavior}, {conduct},
         {deportment}]
     3: (psychology) the aggregate of the responses or reactions or
        movements made by an organism in any situation [syn: {behavior}]
     4: manner of acting or conducting yourself [syn: {behavior}, {conduct},
         {doings}]