bicentennial /ˌbaɪsɛnˈtɛnɪəl/adjective 2noun 1forms 1 adjective2 •Relating to the 200th anniversary of an event or happening. •Occurring every two hundred (200) years. noun1 •The 200th anniversary of an event or happening.The US bicentennial in 1976 was celebrated greatly because the economy happened to be good. formsbicentennials
